LED facts

Gadgets and Gizmos (India) - - KNOW TECH -

Di­rec­tional light: LED lights are used by com­pa­nies and in­di­vid­u­als that want to have light di­rected at a spe­cific lo­ca­tion. They are more re­li­able than tra­di­tional light­ing op­tions for this pur­pose. Life: The life of an LED light bulb can be as long as 50,000 hours. This time frame is based on ideal con­di­tions with the LED light bulb not be­ing ex­posed to ex­treme heat or cold, or mois­ture. Air cir­cu­la­tion: Poor air cir­cu­la­tion can re­duce in the life of an LED light. The bulb it­self pro­duces a small amount of heat, but it is enough to re­sult in lessthan op­ti­mal con­di­tions for LED bulbs. Ap­pli­ca­tions: LED lights have found a per­ma­nent home in Exit signs, traf­fic lights, store dis­plays, and any­where where coloured light is needed. LEDs are en­ergy ef­fi­cient.

Epoxy case An­oded wire

TFT and elec­trodes Liq­uid Crys­tal


An­ode Emit­ted light


Lead frame


Re­flec­tive cup Pos­i­tive ter­mi­nal Neg­a­tive ter­mi­nal

n-type Gan

p-type Gan

Ac­tive re­gion



LED back­light


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