LED can directly convert electricity into light. The heart of LED is a semiconductor chip, one end of which is attached to the bracket, one end is the negative electrode, and the other end is connected to the positive electrode of power supply, so that the whole chip is encapsulated by epoxy resin. LED can directly emit red, yellow, blue, green, cyan, orange, purple and white light.
Extended data:
Advantages of LED lamp:
1, long service life
The semiconductor chip emits light, has no filament, no glass bubble, is not afraid of vibration and is not easy to break, and its service life can reach 50,000 hours.
2, the safety factor is high
The required voltage and current are small, and the heating is small, which will not cause potential safety hazards. It is used in dangerous places such as mines.
3. Environmental protection
There is no harmful substance such as mercury. The assembly parts of LED bulbs can be easily disassembled and assembled, and can be recycled by others without recycling by manufacturers.
4, energy saving
The energy consumption of white LED is only110 of incandescent lamp and14 of energy-saving lamp.