How long can the LED light string be on?
The small lights in the gift box usually go on for three days to a week and then go out automatically
LED lamp is a semiconductor material chip of electroluminescence, which is solidified on the bracket with silver glue or white glue, and then connected to the chip and circuit board with silver wire or gold wire. The periphery is sealed with epoxy resin to protect the internal core wire. The shell is installed, so the seismic performance of LED lamp is good.
The semiconductor chip is composed of two parts. One part is a P-type semiconductor, in which holes play a major role, and the other end is an N-type semiconductor, in which electrons play a major role. But when these two semiconductors are connected, a P-N junction is formed between them.
When the current acts on the chip through the wire, the electrons will be pushed to the P area, where the electrons will recombine with holes, and then emit energy in the form of photons. This is the principle of LED light emission. The wavelength of light, that is, the color of light, is determined by the material that forms the P-N junction.