Golden Light




      What is "LED" Light ?

       A light-emitting diode (LED) is a semiconductor chip that emits light when conducting current. LED's are very             versatile due to their ability to emit nearly all spectrums of light. This has led to their nearly universal adoption 

       as a light source for a wide range of applications from: status indicator lights, to traffic signals, to today's 

       advanced direct replacement LED light sources.

 10 major benefits Why we Choose “LED” Light?

   1. Long lifetime:
    LED has a longer lifetime compared to conventional light sources.
    LED will last 50,000 hours. No need to replace them frequently.
    LED has low degradation compared to conventional light sources.
    LED’s first 1000 hours of light loss will be under 2%!
   2. Durable:
    Unlike bulbs or florescent, LED won’t be affected by collisions and vibrations.
    Also, LED’s emission of light will not wavered like the others.
    This could certainly help in the automotive and marine world.

   3. Athermancy and No UV:
    LED produces less heat than conventional lights. LED operates at less than 80C.
    No more burning of fingers! Also, LED produces no UV which makes it great for lighting precious artifacts or paintings.

   4. Decorative:
    It has a wide range of color choices. It doesn’t need color lenses to change colors. 
    It saves lots of energy and cuts down tremendously on material cost. It is perfect for decorative purpose.

   5. Ultra Low Power:
    Save up to 80% power usage by replacing a conventional light source with LED lamp. 
    Efficiency: LED uses much less power compared to incandescent light bulb (normally 80% less). Input: 100V–240V, 
    Output: DC12V–DC24V.
   6. Solid State Technology:
    LED is actually a semiconductor. Unlike the other light sources, LED can easily be produced and its functions can be                      controlled with a processor to achieve unique lighting effects.

   7. Instantly Lighting up:
    LED switches on to full brightness hundred times faster than conventional light sources. 
    It makes them more noticeable when used for directional or tail-lighting. Most luxury car manufacturers have realized that LED
        lamp is more noticeable and stylish. LED blinks more solidly and can be brighter if used properly. Many law regulations enforce             ambulances and fire trucks to change their lights to LED technology for the same reason.

   8. Less Wiring:
    Lower operational voltage & amperage reduces line voltage drop. 
    This means LED has less wiring cost and brighter lights.

   9. Resilient:
        LED is naturally water proof, by itself.

   10. Good for the environment:

    It doesn’t contain mercury and other possible pollutants which is good for our environment.   




      -    1907 - H.J. Round discovered electroluminescence when using silicon carbide and a cats whisker. Oleg Losev                          independently  discovered the phenomena the same year

          -    1920s - Oleg V. Losev studied the phenomena of light emitting diodes in radio sets. His first work on 'LEDs' involved a          report on light emission from SiC. In 1927 he published a detailed report but his work was not well known until the 1950s          when his papers resurfaced

         -      Bob Biard and Gary Pittman developed the Infrared LED at Texas instruments. This was the first modern LED. It was            discovered by 'accident' while TI tried to make a laser diode. The discovery was made during a test of a tunnel diode                using a zinc diffused area of a GaAs (Gallium Arsenide) semi-insulating substrate

       -      1961 - Gary Pittman worked together with Robert Biard. He had started working in 1958 with semiconductor GaAs for             creation of early solar cells. This lead him into the group working on tunnel diodes (lasers). A failed attempt to make a               laser lead to the infrared LED


       -     1962 - Nick Holonyack Jr. develops the red LED, the first LED of visible light. He used GaAsP (Gallium Arsenide                     Phosphide) on a GaAs substrate. General Electric

       -     1972 - M. George Craford creates the first yellow LED at Monsanto using GaAsP. He also develops a brighter

            red LED

       -     1979 - Shuji Nakamura develops the world's first blue LED using GaN (Gallium nitride). It wouldn't be until the 1990s            that the blue LED would become low cost for commercial production

         -  1976 - Thomas P. Pearsall develops special high brightness LEDs for fiber optic use. This improves communications                       technology worldwide

    What is LED Light:

      LED = Light Emitting Diode

      The LED is a semiconductor device made from a combination of chemically polarized semiconductors

      Semiconductor device emits light by releasing energy in the form of photons


    How it works:

     -  Like a normal diode,the LED consists of achip of semiconducting Material impregnated, or doped, with impurities to create a             p-n junction.

     -  LED chips are made of silicone (like computer chips), and then mounted in a “package” that has electrical leads and sometimes           heat sinking.

    LED Light System:

   Environmentally friend:

     Contains no mercury.

     No filament failures, no cathode failures, no glass to break.

     Energy efficient

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