LED Lighting in India – Types,List of Manufacturers(Philips) and Advantages

6 Jul, 2011
Energy,Light Emitting Diodes

LED LightLED light is a semiconductor light source. They are gaining popularity because they are more energy efficient. Mainly used for indoor, street & home lighting, they come in various brightness & designs to suit ones needs. LEDs are available in wide range of colors from 2700K to 6500K which are dark yellow, mild yellow and ultra white. LED lighting fixtures offer endless color possibilities to enhance one’s environment. Because of the infinite colour patterns, these products are ideal for entertainment, architectural and retail applications. The demand for these lights is rising because of its efficiency and cost effectiveness. The future of household and commercial lighting is definitely LED light & soon it will be everywhere – in our homes, street lights, outdoor signs, and offices, replacing the traditional incandescent lighting.

Read more about what is a LED and How LED Works

ADVANTAGES:

  • Energy Efficient – Reduced power consumption unto about 70%
  • Longer life – The operational life of current white LED lamps is more, due to its high strength diodes. It is about 50,000 – 80,000 burning hours as compared to 5000 – 10000 hrs of CFL and FLT.
  • Replacement Cost – is almost nil as compared to others which require frequent replacement.
  • Maintenance Cost – The traditional lights require starters, ignitors and capacitors which require frequent maintenance & repairs. In contrast there is nonsuch hassle in LED lights.
  • Power Fluctuation – Since LEDs are dimmable, input voltage fluctuations does not affect life of LED as much as it affects the other light systems.
  • Material – LED bulbs are made of good quality plastic bulbs and more durable than traditional bulbs and even CFLs.
  • Safety – LED bulbs are very safe due to absence of any mercury and ultra-violet light.
  • Environment Friendly – LED bulbs are both customer friendly and eco-friendly as they reduce CO2 emission, thus helping to create a better world for the future generation.
  • Quick switch on, start within millisecond.

You can also read about Which LED TV in India you should Buy

TYPES OF LED LIGHTS

Ring Lights – These are high density lights, useful for a bright concentration of light at the centre of illumination area.

Bar Lights – These are high intensity LED arrays arranged rectangularly. It’s angle can be adjusted to suit ones purpose.

Outdoor Lights – LED used for lighting streets, pedestrian paths & vehicle routes. These are built of very resistant material, to bear adverse weather conditions, corrosion & rust.

Tube lights – Available in different watts & colours, these lights can be used for both indoor & outdoor lighting purpose.

Table light – These are high power LED with aluminium dome, flexible arm & LED driver.

Decorative lights – These LEDs come in various attractive colours, patterns, shapes & sizes to suit the different lighting needs of it’s customers.

Emergency Lights – These lights are developed & designed, keeping in mind the Indian consumers. They use a unique black eye technology & delivers an all round 360 degree lighting. They provide a battery backup to a maximum of 20 hours.

Underwater lights- These water proof LED lights are used in swimming pools, fountains & other water areas.

Sports lights – Different lighting for different sports complexes. The various types of services offered are Teak lighting, indoor sports courts, stands, high mast fitting, flood lights, hoardings.

Also find details on Solar Lighting In India

Some of the leading LED lights manufacturers in India are:

  1. PHILIPS – The company is a market leader in cardiac care, healthcare, energy efficient lighting solutions as well as lifestyle products for personal well-being. As one of the nation’s most well-known brands, Philips is a part of practically every Indian’s life. Philips has been operating in India for over 75 years and employs over 4,500 employees around the country. The company has an excellent pan India distribution and after-sales service network. Philips manufactures consumer products like TV, sound systems, household appliances, personal grooming products, PC products & phones, lighting accessories & healthcare products. The company has launched a range of LED lights, by the name of LEDINO. It is a complete range of indoor lighting using advanced state of the art LED technology. The company has come up with lights that are stylish, yet so versatile that it can be used in radical new ways. The company believes in LEDs being the next generation innovative energy conserving lighting solution. The most popular product is the LEDINO Wall light of 2.5 W. The types of products for indoor LED lighting are spot light, ceiling light, wall light, floor light, desk light & suspension light. It comes on different colours like White, black, chrome, grey & aluminium.
  2. GKON – The company is associated with led lighting manufacturing in India for the last 15 years. It is one of the fast growing LED bulbs manufacturers and suppliers in India. Gkon offers a wide range of superior quality LED light bulbs and lamps. Gkon is serving successfully to Indian and International customers in LED arena. Its wide range of LED lighting products include Surface & emergency lights, downlighter, industrial & commercial lights, street, garden & decorative lights (walkover, cover light, underwater light, spike light), LED modules & bulbs.
  3. SUPERLITE LUMINAIRES – The company started its business in 1996, in the field of commercial projects in retail and offices. Today it’s portfolio ranges from General Commercial Lighting to Technically Complex lighting such as Solar supported LED lighting & Cleanroom Luminaries. The company manufactures LED products for various applications like street light, Solar Street light, Passage light, Small area lighting, and Office lighting.
  4. INSTAPOWER – Is a leading name in power electronics for over two decades. Its vast LED product range includes ceiling lights, down lighters, bulbs, street lights, landscape & architectural lights, aviation & industrial bay lights & also LED customised products. Instapower is the largest manufacturer of LED Aviation Obstruction lights in India and has over 100,000 aviation lights installed in India and other countries. Their products are exported to over 30 countries. Their prestigious client list comprises of RDSO, CPWD, DDA, BSNL, VSNL, MTNL, Airtel, Vodafone, Nokia, Indian Railways, BHEL, L&T, DMRC, NBCC, IOCL, ONGC, GAIL, OBC, Apollo Hospital, RML Hospital, Maruti Suzuki amongst others. Their products were supplied and installed during Commonwealth Games 2010 in New Delhi, India and at prestigious places such as The Rashtrapati Bhawan and Parliament House.
  5. DEEPAKSHI DISPLAY DEVICES Pvt Ltd – Established in 1996, Deepakshi Display Devices Pvt. Ltd. is a leading company in Liquid crystal Displays. They started their LED Backlight Plant in 2007. The company has it’s own Backlight Design. Different Side LED Backlight with various color options are available as per the requirements in different application. The company specializes in high power LED Lighting & have applied for New LED Light with various patent, with excellent performance of Thermal Management which is the very core sector of LED design. It has manufacture different Led Street Light of 14w, 40w, 80w, 100w and Led Flood Light of 100w and 150w.
  6. ILLUMINATION INDIA – are known for their quality Decorative Led Lighting and Optical Fiber Light, which are more energy efficient with high illuminating power. The company has positioned itself as one of the leaders in Interior Led Lighting manufacturers and exporters from India. The ample range of products includes Fiber Optic Lighting, Led Lighting Outdoor, Led Home Lighting etc. The raw materials used are sourced from Japan, Germany & Korea.
  7. NEOLON LIGHTING – They produce indoor & outdoor lighting fixtures, decorative & functional lighting products. A trusted brand name for professional, engineers, architects & customers. They manufacture LED spot lights.
  8. HONDA-I INTEGRATED TECHNOLOGIES Pvt Ltd. – Based in Bangalore, are the manufacturers & distributors in India of LED lights, batteries, solar electric power systems, embedded development & computer and electronic components.
  9. GLOBALBRAINS – Based in Bangalore, are the manufacturers & exporters of LED lights, solar lights, wind energy towers and structures, wind turbines, solar water pump, since 2008.
  10. EVERGREEN SOLAR SYSTEMS INDIA Pvt Ltd. – Based in Coimbatore, are majorly the manufacturers of LED lights & solar modules.
  11. ELECTRO POWER ENGINEERING – are the manufacturer, retail sales, wholesale supplier, exporter, importer, distributor of LED lights, diesel electric generators,wind power plants, wind energy system components, backup power systems. They are located in Rajkot, Gujarat.
  12. 3S INTERNATIONAL – are Cochin based manufacturer, wholesale supplier, importer, distributor of LED lights since 2001.
  13. AG POWER SYSTEMS – are Mumbai based manufacturer, wholesale supplier, exporter of LED lights, batteries, DC to AC power inverters,photovoltaic cells.
  14. SMARTEN SOLUTIONS – are Bangalore based retailer, wholesale supplier, exporter, importer, distributor of LED and Induction Lighting, Solar panels/modules, Wind Turbines / Generators, Hybrid systems, Grid connected and off grid solutions.
  15. SUNNSTAR INDUSTRIES – Based in Delhi are the manufacturers & deal in project development & design services of LED lighting.

What is an LED and How it Works – Advantages,Applications,Types and Costs of Light Emitting Diodes

6 Jul, 2011
Light Emitting Diodes

LED

WHAT IS AN LED/ BASIC WORKING PRINCIPLE

A light-emitting diode (LED) is a special type of semiconductor device that emits visible light when an electric current passes through it. It has two sides – one with an abundance of electrons called “n-type semiconductor” & the other with bunch of holes that need to be filled by electrons known as “p-type semiconductor “. With the help of these p-n junctions, these semiconductors can control the direction of the flow of electricity. The LED works on the principle that when electrons lose energy, they move from a higher orbit to a lower orbit. The energy lost is in the form of light photons. The color of the light emitted depends upon the frequency of the light photon released. The higher the frequency, the greater is the energy release. Gallium nitride is the light emitting ingredient in LEDs. It is used in the sapphire-based blue and green LEDs. Its practical application is in traffic signals & in lasers in high-definition DVD players.

LED HISTORY

H. J. Round of Marconi Labs discovered Electroluminescence as a phenomenon in 1907. Later in 1955, Rubin Braunstein of the Radio Corporation of America reported on infrared emission from gallium arsenide (GaAs) and other semiconductor. Nick Holonyak can be called the “father of the light-emitting diode”. He developed the first practical visible-spectrum (red) LED in 1962, while working at General Electric Company.

LED ADVANTAGES

    • Uniform Lighting – the light is spread evenly over the lens which make them brighter than normal luminous lights.
    • Energy Efficient – In contrast to the normal lights where a higher percentage of energy is lost as heat, LED light gives off negligible amount of heat so a higher amount of electricity is converted into light. This phenomenon of release of light is known as “electroluminescence”.
    • Longer Life – These lights have greater durability & hence are more reliable. They can function for decades, if properly installed.
    • Small Size
    • No Filtration Required – Unlike Incandescent lamps producing only white light which needs to be filtered for applications such as traffic lights, the light generated by LEDs, need not to be filtered. Thus there is no additional loss of energy.

LED APPLICATIONS

    • LCD panel backlighting - white LEDs are used in flat-panel computer displays.
    • Remote Controls of televisions, DVD players, and other domestic appliances – Infrared LEDs are used here.
    • Automotive Lighting – LEDs are used particularly in brake lights, turning signals & indicators.
    • Traffic Signals – Groups of LEDs are packaged into arrays & arranged to form a traffic light.
    • Aviation Lighting

CHALLENGES – Some of the electricity in an LED becomes heat rather than light. If that heat is not removed, the LEDs run at high temperatures, which not only lowers their efficiency, but also makes the LED more dangerous and less reliable. Thus, thermal management of high power LEDs is a crucial area of research and development.

TYPES OF LEDs

Different color LEDs require different forward voltages to operate. Red LEDs require the least voltage, while blue requires higher voltage. Typically, a red LED requires about 2 volts, while blue LEDs require around 4 volts. Based on the color of LED, it can be divided into:

  • Visible LEDs – The colors emitted by LEDs various with the temperatures & currents. Different colors are given off at different temperatures & current. LED colors are often given in “nm”, or nanometers, which is the wavelength of the light. LEDs are not perfectly monochromatic, but rather produce wavelengths over a small region of the spectrum.
  • Infrared LEDs – are sometimes called IREDs – Infra Red Emitting Diodes. The infrared band can be divided into Near Infrared (NIR) and Far Infrared (IR). Far infrared does not come in the range of LEDs. NIR can be further divided into two bands, longwave and shortwave NIR.
  • Ultraviolet LEDs – LEDs emit UV-A which is 400 nm of wavelength. Ultraviolet UV-B causes sunburns, UV-C is dangerous as it kills things. However it is advisable not to stare into an ultraviolet LED.
  • White LEDs – have a color temperature. Color Temperature is a measure of the relative amounts of red or blue – higher color temperatures have more blue.

LED COST

LEDs are created on a substrate of sapphire & hence are expensive. However, a technique is developed to create LEDs on low-cost, metal-coated silicon wafers. The sapphire-based technology, however, is currently too expensive for widespread domestic-lighting use, costing at least 20 times more than conventional incandescent and compact fluorescent light bulbs. China with its low production cost & labor cost has made the manufacturing of LEDs very cheap & affordable.There are LED bulbs on the market which can replace the regular CFLs,the cost has fallen rapidly to around $20.With major Chinese makers getting into the manufacture of the sapphire substrates and wafres,it is expected that the general lighting market will be completely taken over by LEDs.

LED TV India Comparision Reviews and Prices- What is a LED TV,Differences LCD vs LED and Television Companies (Samsung,LG,Panasonic,Sony),Models

6 Jul, 2011
Light Emitting Diodes,Samsung,Technology,Technology Sector

 

What is a LED TV

 

LED TV is an LCD TV that uses LEDs to illuminate the display. these new sets use LED backlights rather than the fluorescent-type backlights used in most other LCD TVs. LED-backlit LCD TVs cost twice more than standard LCD or plasma TVs. Because of the slim line design of these LED tvs not only is less packaging used, but the vast reduction in overall weight means reduced transport and fuel costs. Most of the LED TVs are mercury free making them extremely eco friendly.You can also read what is a Light Emitting Diode.

Types of LED Televisions

 

  • Dynamic RGB LEDs – this technique enables dimming in specific local areas of screen which enhances perfect darkness wherever required, thus showing the true intensity of the dark colors
  • Edge LEDs – allow diffusion of light across the entire screen panel which enables uniformity in colors. LCD TVs using edge-lit LCDs can be ultra-thin, because the LED sources are on the side. They are also less expensive than TVs using backlit technology. 
  • Full Array LEDs – the LEDs are arranged behind the screen to enable the necessary effect in the image quality.

These techniques use less power than plasma TVs and LCD TVs lit with fluorescent tubes.

Differences between LED & LCD TVs

  • LED TV use about 20-30% less power than LCD TV sets 

    . Hence there is more energy saving in LED TV set.

  • No Mercury is used in LED TVs as in some other LCD backlight systems.
  • There is more balanced color saturation in LED TV sets.
  • LEDs are more expensive than LCDs.
  • LED TVs using Edge backlight method have more thinner panel than standard LCD televisions.
  • LED TVs have a better heat dissipation than LCDs. 
  • LED TVs have a brighter display with better contrast levels.

The most popular LED TV Indian Companies are

Samsung LED Television

1)SONY – A well known brand in providing excellent audio & picture quality & hence its products like mobile phones, music systems, TVs, video cameras & laptops have a superior make. Started in Japan in 1946, Sony is one of the world’s leading manufacturers for consumer electronics and broadcast & professional products. In India, Sony has its presence across all major towns and cities through a distribution network comprising of over 5000 dealers and distributors, 240 exclusive Sony outlets and 19 direct branch locations. Sony India also has a strong service presence across the country with 20 company owned and 190 authorized service centers and 16 exclusive demonstration centers. Sony has launched a range of LED TVs with varying features and in different screen sizes starting from 32 inch up to 65 inches. SONY LED TVs are more sleeker & more glossy and offers excellent picture clarity, contrast and brightness. Hence this brand is more popular with customers. Its full HD feature has improved the image quality. SONY TVs always better in terms of reliability and quality.

The LED TVs come in various series:

  • EX520 series:The Ultimate TV and Web Surfing Experience. Features: Full HD 1080 picture quality with Edge LED backlight, Skype, BRAVIA Internet Video & BRAVIA Internet Widgets. The screen sizes vary from 32 inch to 46 inches with a price range of Rs 47,900 to Rs 93,900.
  • EX420 series: Network Capability with High Picture Quality. Features: High Definition (720p) picture quality with Edge LED backlight, Skype,BRAVIA Internet Video & BRAVIA Internet Widgets.The screen sizes vary from 22 inch to 32 inches with a price tag of Rs 20,900 to Rs 42,900.
  • NX710 series: Features: 3D Capability (Full HD 3D),Dynamic Edge LED Backlight with Opti-Contrast Panel,Motionflow PRO 100Hz with Image Blur Reduction. The screen sizes available are 40 inch for Rs 93,900 & 46 inch for Rs 153,900.
  • NX720 series: Features: Edge LED, OptiContrast and CORNING’s Gorilla Glass Panel, Wi-Fi Integrated. The screen sizes available are 40 inch for Rs 93,900 & 46 inch for Rs 123,900.
  • EX720 series:Features: Full HD 1080 picture quality with Edge LED backlight, Skype, BRAVIA Internet Video & BRAVIA Internet Widgets. The screen sizes vary from 32 inch to 55 inches (Full HD 3D with a built-in 3D Transmitter) with a price range of Rs 57,900 to Rs 179,900.
  • HX925 series:Features: Intelligent Peak LED, Motionflow XR 800, X-Reality PRO picture engine. The screen sizes available are 46 inch for Rs 153,900 & 55 inch for Rs 259,900.

2).SAMSUNG – Samsung is engaged in providing a diverse service range to its customers right from semiconductors, skyscrapers, petrochemicals, to fashion, medicine, finance, hotels and more. It is in market for more than 70 years.Samsung Electronics leads the global market in high tech electronics manufacturing & digital media. The product range is wide & varied from mobile phones, LCD TVs, cameras, home appliances like washing machines, refrigerators, ACs to laptop, notebooks & computer peripherals. Samsung’s 2010 LED TV series have unmatchable design and picture quality & also consume less power. The LED TV sets ranges from 32 inch to 60 inches to suit all room sizes and budgets. The frames also feature a Touch of Color that come in various distinctive edges, including Brushed Titanium, Mystic Earth, Stone Black, Graphite , Red and Grey that give the panel a smooth lined appearance. By using edge-lighting in their LED TVs they have managed to reduce the electrical consumption by 40 percent when compared to a standard LCD TV in standard viewing mode. They follow an Eco Friendly approach to television design.

Some of the characteristic features of SAMSUNG LED sets are:

• Higher Contrast Ratios up to 8,000,000:1 on the C8000 Series offer a superior range of brightness, making the white and black pixels purer.

• Wide Color Enhancer Pro feature examines each pixel and makes the necessary adjustments to produce the most defined colors seen on a modern television display.

• A marked reduction of motion blur especially when watching sport or fast action scenes has been achieved by increasing the refresh rate of the screens on the Samsung LED TV.

The various series that the TVs come are:

  • Series 4 – the screen size is 32 inch for 799$. Features include CMR 50, Hi-Definition, ConnectShare Movie (allows to connect a digital camera or thumb/pen drive and view content including movie files or photos on the television), HyperReal Engine, SRS TheatreSound HD, Dolby Digital Plus, Anynet+ (HDMI-CEC), Mega Dynamic Contrast, Ultra Slim White Design, 4 HDMI, Wide Colour Enhancer Plus &Digital Noise Filter
  • Series 5 – The screen size varies from 22 inch to 40 inches with a price range of 499$ to 1399$. It’s various features include CMR 100,Full Hi Definition,ConnectShare Movie,Smart HUB ,Wi-Fi Dongle Option,USB,Multiple HDMI,Ultra Clear Panel,Ultra Slim Design,Wide Colour Enhancer Plus,SRS technology,TheatreSound HD,Dolby Digital Plus,Eco Sensor.
  • Series 6 – The screen size vary from 32 inch to 55 inches with a price tag from 1099$ to 3499$. They have also launched 60 inch TV. The features are CMR 400,Oneness Design,Full Hi-Definition,ConnectShare Movie,Smart HUB – (Skype, Web Browser, Samsung Apps, Search All, Your Video, Social TV),Personal Video Recorder,3D,2D-3D Converter,3D HyperReal Engine,3D Sound,BD Wise,3 USB,4 HDMI,SRS TheatreSound HD,Dolby Digital Plus,Anynet+ (HDMI-CEC),built in Wi-Fi ,Ultra Clear Panel,Wide Colour Enhancer Plus & Digital Noise Filter.
  • Series 7- The screen size available are 46 inches for 3199$ & 55″ for 4099$. They also have 60 inches. The features include Oneness Design,CMR 600,Full Hi-Definition,ConnectShare Movie,AllShare,Smart HUB,Personal Video Recorder,3D,2D-3D Converter,3D HyperReal Engine,3D Sound,BD Wise,3 USB,4 HDMI,SRS TheatreSound HD,Dolby Digital Plus,Anynet+ (HDMI-CEC),Wi-Fi,Ultra Clear Panel,Wide Colour Enhancer Plus & Digital Noise Filter.
  • Series 8- There is a 55 inch TV for 4699$ & 60 inch is also launched. The various features include 5mm bezel,Oneness Design,CMR 800,Micro Dimming,Full Hi-Definition,ConnectShare Movie,AllShare,Smart HUB,Personal Video Recorder,3D,2D-3D Converter,3D Hyper-Real Engine,3D Sound,BD Wise,4 HMDI,3 USB Connectivity,SRS USB Connectivity,Dolby Digital Plus,Anynet+ (HDMI-CEC),Wi-Fi,Wide Colour Enhancer Plus,Ultra Clear Panel,Wide Colour Enhancer Plus,Digital Noise Filter & Flip QWERTY Remote.

3).LG – the company is today known for bringing advanced digital products and applied technologies to its customers. LG Electronics is on its way to becoming a worldwide leader in digital world, ensuring customer satisfaction through innovative products and superior service. The company controls 114 local subsidiaries worldwide, with roughly 82,000 executives and employees. LED, LCD TVs, washing machines, microwave ovens, AC, mobile phones, music systems are the products offered by the company.

The different TV series are:

  • LW6500 – with screen sizes from 42 inch to 55 inches & a price range of Rs 104,990 to Rs.194,990. Its features include Edge LED backlighting, smart energy saving, Cinema 3D,IPS-Advanced LED LCD Panel,DivX through USB 2.0,XD Engine, HDMI,Smart TV, DLNA certified,full HD1080p, wireless ready, infinite 3D surround sound, Dolby digital decoder. The 55″ has IPS- advanced LCD panel.
  • LE4600(INFINIA) – The screen size varies from 32 inch to 47 inches with a price tag of Rs51,990 to Rs 97,990. It is JAZZ in LED. The various features are: IPS-Advanced LED LCD Panel,DivX through USB 2.0,XD Engine, HDMI, color gamut control,infinite 3D surround sound, Dolby digital decoder, PC connectivity.
  • LE4610 – The 32 inch TV is available for Rs 48,490.The LG JAZZ series has now started its LED series by the name of INFINIA. It has 460W PMPO sound, which makes the audio effect very good & brings in a theatre like effect.
  • LV2130 – The available screen sizes vary from 22 inch to 32 inches with price ranging from Rs 16,990 to Rs 38,990. The various features include Edge LED backlighting, smart energy saving,DivX through USB 2.0,XD Engine, Dynamic Contrast Ratio100,000:1, PC connectivity, HDMI.
  • LV3000 – The screen size varies from 26 inch to 32 inches with a price range of Rs 28,990 to Rs 40,990. The various features are Edge LED backlighting, smart energy saving,IPS-Advanced LED LCD Panel,DivX through USB 2.0,XD Engine.
  • LV3500 – The available screen sizes are from 32 inch to 42 inches costing in between Rs 43,990 to Rs 62,990. The features it offers are full HD1080p,Edge LED backlighting, smart energy saving,IPS-Advanced LED LCD Panel,DivX through USB 2.0,XD Engine, HDMI, infinite surround sound system.
  • LV3730 – the screen sizes come in the range of 32 inch to 47 inches, costing in between Rs 47,490 to Rs 90,990. It offers various features like Edge LED backlighting, smart energy saving,IPS-Advanced LED LCD Panel,DivX through USB 2.0,XD Engine, HDMI,Smart TV, DLNA certified,full HD1080p, wireless ready, infinite 3D surround sound, Dolby digital decoder.
  • LW4500 – The screen sizes come in all sizes from 42 inch to 47 inches, costing from Rs 79,990 to Rs 114,990. It offers features like Edge LED backlighting, smart energy saving,IPS-Advanced LED LCD Panel,DivX through USB 2.0,XD Engine, HDMI, 2D-3D conversion,full HD1080p, infinite 3D surround sound, Dolby digital decoder.
  • LE5300(INFINIA) – The screen sizes available varies from 22 inch to 32 inches with a price range of Rs19,790 to Rs 46,490. It offers various features like DivX through USB 2.0,XD Engine, HDMI, color gamut control,infinite 3D surround sound, Dolby digital decoder, PC connectivity.
  • LE5500- LED plus INFINIA – the screen size vary from 32 inch to 47 inches with price ranging from Rs 53,490 to Rs 106,990. It includes features like LED backlight, IPS Advanced LCD panel,broadband, DLNA, wireless ready,DivX through USB 2.0,XD Engine, Color gamut control,PC connectivity, HDMI.
  • LW5700 – The screen size vary from 42 inch to 55 inches costing in between Rs 94,990 to Rs 164,990. It has features like Edge LED backlighting, smart energy saving, Cinema 3D,IPS-Advanced LED LCD Panel,DivX through USB 2.0,XD Engine, HDMI,Smart TV, DLNA certified,full HD1080p, wireless ready, infinite 3D surround sound, Dolby digital decoder.
  • LV 5500 – The screen size range from 42 inch to 47 inches with a price range of Rs69,990 to Rs 96,490. It offers features like Edge LED backlighting, smart energy saving, Cinema 3D,IPS-Advanced LED LCD Panel,DivX through USB 2.0,XD Engine, HDMI,Smart TV, DLNA certified,full HD1080p, wireless ready, PC connectivity,infinite 3D surround sound, Dolby digital decoder & Magic motion remote control.

4).PANASONIC -  – Panasonic Corporation is a worldwide leader in the development and manufacture of electronic products for a wide range of consumer, business, and industrial needs. Its operations are across 9 countries, with a workforce of about 385,000 spread over 75 companies. Panasonic has built 297 manufacturing facilities across the world. The new Panasonic Pure Line range of TVs – a new range of televisions with a sleek and sophisticated design, is the perfect choice for living rooms. It has exceptional picture quality & features like Intelligent Frame Creation Pro, Super-High Dynamic Contrast and 178° wide angle viewing. Not only does Pure Line range have a sleek design and exceptional picture quality, it offers built-in dual HD tuners, are DLNA certified and offer other versatile connectivity.

  • Its Full HD LED TV has a silver finish & has features like Viera Cast Enabled (giving access to selected online content such as Acetrax, Skype, YouTube, Twitter, Eurosport, Google’s Picasa Web Albums), freeview HD Built-in & Freesat HD Built-in. It comes in screen sizes from 32 inch to 37 inches.
  • The HD LED TV comes in a Purple / White finish & offers features like Viera Link Enabled, iPOD Docking Station & 2 HDMI Ports. It comes in screen sizes from 19 inch to 22 inches.

There are also other LED TV Manufacturers and Sellers in India like Toshiba,Sharp and Philips but they don’t have the distribtution and focus as the above brands.Local Indian LED TV Sellers like Onida,Videocon,Koryo as well as Asahi cater to the lower end segment of the market and make low quality LED TVs

LED Exit Signs – Types (Edge-Lit,Thermoplastic),Cost Emergency and Retrofit Signs,List of UL Approved Suppliers

5 Jul, 2011
Light Emitting Diodes

LED Exit SignExit Sign is an important legal safety requirement, in case of any emergency like fire in any building. An LED exit sign is an illuminated sign that uses LED light to illuminate the word “EXIT. The traditional incandescent & fluorescent technology that are used, consume large amounts of energy & also require frequent maintenance. Since these signs operate 24*7, there is a need to replace incandescent bulbs with efficient models with long lives to help reduce maintenance cost and effort. They offer savings of up to $300 per sign in reduced energy, materials, and labor costs as compared with standard incandescent models. LED exit signs are an array of very small LEDs either red or green in colour arranged in a line or circularly. Many exit signs come with a battery backup since they need to remain lit at the time of emergency, when a building’s power is interrupted. It is a good option that buyers should look for. LED exit signs work at 120V or 277V. Exit sign manufacturers have made these products available at very competent prices. They are also easy to install. LED exit signs need to be approved for use by UL (Underwriters Laboratories) and should be compliant with local and federal building codes.

Read about What is a LED

ADVANTAGES

  • Energy Efficient – LED Exit signs consume less power (less than 5 watts electricity) as compared to the normal CFL signs, which means not only there is a reduction in the electricity bills but also less pollution.
  • Bright – Due to the monochromatic nature of the light that LEDs emit, they are more brighter than the incandescent signs.
  • Low Maintenance – Many LED exit sign manufacturers claim that their products would maintain the standard levels of illuminate for 80,000 hours, as compared to 2,500 hours with the normal sign boards.
  • Reasonable price – All these features are available for prices beginning at 20$.

TYPES OF LED EXIT SIGNS

  • Thermoplastic LED Exit sign – These are the most versatile type of exit sign ie. they are applicable to almost every type of installation. They are very affordable – for prices beginning at 20$ per unit. They are useful for indoor use. They come with one backplate, two exit faceplates, one mounting plate & installation hardware. Some manufacturers also supply an emergency lighting unit along with these LED exit signs as a combo model. These emergency lights become very handy incase of any emergency situation.
  • Cast Aluminum LED Exit sign- They are durable & attractive & are used in schools & hospitals. They are sleeker than the thermoplastic signs. They come in aluminum, black & white finish.
  • Edge-lit LED Exit sign – They have a recess mounted aluminum housing, which gives it an elegant look. It is brighter& glows more than the above two types. They are used in hospitals, offices, universities etc.

LED EXIT SIGN MANUFACTURERS

  1. ENCORE LIGHTING – Started in 2003 in New York, the company specialises in Exit & Emergency lights. It manufactures all kinds of LED exit signs – thermoplastic, steel, die cast,edge lit. It has also launched the UNO series which is a fully universal LED Edgelit Exit Sign with a brushed die cast aluminum housing and trim plate & Endurance CX Series which is a recessed mounted LED Edgelit Exit Sign utilizing two adjustable high brightness White LED lamps for downlighting.
  2. PACE LITES – is the manufacturer of emergency lights, exit signs, and emergency ballasts. The products are manufactured in our plants in China, warehoused in the US & are based in Sodus, NY. PACE LITES offers a complete line of UL approved emergency lights, exit signs and emergency ballasts. They have everything to offer in LED exit signs ranging from thermoplastic, thermoplastic combo, wet location combo to edge lit LED, surface mount edge lit LED, die cast aluminium LED.
  3. BC HYDRO – BC Hydro provides energy solutions to customers in an environmentally and socially responsible way. It plans and delivers the clean energy required to meet British Columbia’s growing demand for electricity while helping reduce greenhouse gas emissions.
  4. MULE LIGHTING – Mule Lighting is in the lighting business since 1923 in US. Their wide range of exit signs, emergency lighting units, fluorescent battery packs and emergency power systems meet the requirements for a wide range of commercial and industrial applications. It has a separate division for LED lighting by the name of LED ALUX. It manufactures a variety of LED Exit signs – MX series, Arris series, Pivotal series, ROBO series,Meridian series, E- star series,classic series, pinnacle series.
  5. LITHONIA LIGHTING – The company business line includes commercial, industrial, institutional and residential fixtures. It is an Acuity Brands Company & is into business since the last 60 years in Conyers, US. The company manufactures all kinds of LED Exit signs in red green & grey colors: edge – lit exit with LED lamps, die- cast aluminium exits with LED lamps, surface mount edge lit with LED lamps, die- cast aluminium exits with LED lamps with FIDO wireless monitoring system, steel exits with LED lamps, vandal resistant all conditions exits with LED lamps.
  6. GRAINGER- Grainger’s customers are 2.0 million businesses and institutions in 157 countries. It has business segments mainly in US & Canada & operating units in India, China, Mexico, Columbia, Japan, Puerto Rico and Panama. It’s wide product range includes lighting, electrical, adhesives, painting, power transmission & office fixtures. The LED exit signs at Grainger have a fully automatic solid state charging system for at least 90 minutes of emergency power. LED exit signs from Grainger provide reliable results while using less energy. They also offer emergency lighting fixtures combination with the exit signs.
  7. PEGASUS LIGHTING
  8. PRO LIGHTING

World’s Biggest Green Company Siemens Clean Technology Leadership to face Challenges from Giant Industrials like GE,Samsung

13 Nov, 2010
GE,Lighting,Renewable Energy,Samsung,Siemens,Smart Grid

Siemens is the world’s biggest Green Company reporting 28 Billion Euros from its Environmental Portfolio.This diversified Industrials German Conglomerate generates revenues from a diverse number of Green Sectors.While some of its Green Revenues may not be strictly Green as it includes revenues from high efficiency turbines and generators which are used for fossil fuel energy,nevertheless Siemens is the biggest Green Company.Siemens has a dominating presence in Renewable Energy (Leading Position in Offshore Wind),Lighting (OSRAM),Green Building Solutions,Energy Transmission and Distribution.The Company derives  30-35% of its revenues from its Environment Portfolio spread across its 3 Divisions.Siemens has done a remarkable turnaround in the last few years and its recent dividend increase strategy makes it an attractive mega cap stock.The Company is increasing its dividend yield by almost 60% t 2.7 Euros per share or 3% Dividend Yield making the stock an attractive one.Its focus on emerging markets like India and China should yield decent growth even as the developed markets slowdown.It has a massive technological advantages in Energy and Industrial Sectors which are not easy to replicate.

Other Industrial Giants will give a Siemens a Run for its Money

Siemens has planned to increase its Environmental Revenues to Euro 40 Billions by 2014 which is quite a big jump considering the large base.GE is its biggest competitor which is also rapidly increasing investment and research into Renewable Energy.Areva,ABB,Samsung,LG,Hyundai,Toshiba,Sharp,Panasonic,Mitsubishi are other industrial giants looking to rapidly increase revenue from Clean Technology.Siemens has a definite technological and incumbent advantages however the competition is quite formidable.Siemens has made important wins recently in the field of high speed railways,new generation high voltage DC electricity transmission,offshore wind etc.But it lacks size and scale in the fields of nuclear and solar energy and has little presence in the area of Energy Storage as well.While Siemens has bought Soleil in the Solar Thermal field,it lacks a Solar PV product portfolio.Siemens however remains a good long term safe green investment in a volatile cleantech sector.

Green Buildings in India – Siemens looks to Showcase its Green Credentials by making its Offices Energy Efficient

28 Oct, 2010
Energy,Light Emitting Diodes,Real Estate and Construction,Siemens,Smart Grid

Siemens is one of the largest Green Companies in the world with its Green Portfolio covering almost all CleanTech sectors like Solar Thermal,Wind Energy,Energy Efficiency,Smart Grid.Siemens has become aggressive in its Renewable Energy Efforts in India partnering with the Adani Conglomerate and setting up a Wind Turbine Facility.The Company has now started focusing on its Energy Efficiency Division as well.Siemens is a world leader in Energy Efficiency claiming to save Euro 20 billion annually through its past efforts.Green Buildings have become a huge opportunity in recent times with India taking up this new paradigm in Construction with gusto.Not only does Green Buildings save on Energy Costs and help the Environment,they also raise the value of the buildings substantially.

Siemens as a part of its Energy Efficiency Efforts will go on a Green Makeover of its Office Locations in India.LED Lighting and other measures will be adopted to save Rs 3 crore in Energy Costs annually.15% of its current Energy needs will be cut by spending around $2.2 million in the next 2 years with a payback time of around 3 years.Siemens hopes to establish its Green Credentials in the Green Building Category by showcasing its inhouse efforts in Energy Efficiency.Note Energy Efficiency is the cheapest way to cut carbon emissions and is the lowest hanging fruit in mitigating Climate Change.It is perhaps the only Green Sector which does not require a subsidy to be economic.India is on a massive infrastructure building spree with $500 billion expected to be spent over the next 5 years.Green Buildings will go a long way in reducing India’s growing carbon emissions and will save money as well.

Siemens makes its offices in India green

Siemens Ltd. is investing initially around `100 million until the end of 2012 to make its offices in India greener. The company is thoroughly examining its seven company-owned offices in India with regard to environmental protection and energy consumption. The goal is to reduce energy consumption and CO2 emissions by at least 15% by the end of 2012.

Siemens systems in buildings worldwide have already saved about `1,200 billion (€20 billion) and are reducing CO2 emissions by 2.4 million tons. This is equivalent to the annual emissions of roughly one million cars. Siemens is also currently developing “eco city” models to ensure that megacities such as Mumbai, Delhi or Kolkata are planned from the very outset to be as sustainable as possible.

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