De quoi est fait LED lamp
A lamp built on white LEDs.
- LED bleue — a pour partie. White light comes from a blue chip and a phosphor.
- Rectifier — a pour partie. The driver in the base rectifies mains current and limits the LED current; in an ordinary bulb it has no transformer.
- Heat sink — a pour partie. LEDs get warm, so the lamp has an aluminium heat sink.
- Gallium nitride — est fait de. The chips are gallium nitride.
- Aluminium — est fait de. The radiator is aluminium.