1.Lens or part of a resin act limited the direction of the light to the desired angle
2.Bond wire connector, conductivity between Anode. With LED Chip made of aluminum alloy or some is made from gold have
3.Reflector cup translate plain cup reflection, reflective of Chip LED, often as one piece with Cathode iron. Aluminum. Some, some without, but other agents such as reflection heatsink
4.LED chip is P N semiconductor and each other
.The light is out on track, it must have Reflector diffuse light
.
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