LED: Light  emitting  diode(light emitting diode), is an electroluminescent semiconductor materials.Its internal structure is a p-n junction, with unidirectional conductivity.

LED construction

LED mainly by the following several parts:

Chip (role: light source)

Support: including substrate and heat dissipation base, pins, etc. (role: heat dissipation, conductive)

Gold wire (role: conductive)

Transparent resin (role: to protect grain, pervious to light)

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High-power integrated packaging chip

The existing LED packaging technology has been developed from single chip LED light source polycrystalline packaging products (other term is integrated chips).Polycrystalline encapsulation of LED light sources each lumen output can reach 2000 lm.

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