How long can LED string lights be lit?

The small string lights in the gift box will usually light up for three days to a week and then go out automatically

LED light is a piece of electroluminescent semiconductor material chip, cured to the bracket with silver or white glue, and then connected to the chip and the circuit board with silver or gold wire, surrounded by epoxy resin seal, which plays a role in protecting the internal cores and installing the housing, so the LED light has good shock resistance.

Semiconductor chip consists of two parts, one is a P-type semiconductor, in which holes dominate, and the other end is an N-type semiconductor, on this side is mainly electrons. However, when these two semiconductors are connected, a P-N junction is formed between them.

When the current through the wire acting on this wafer, the electrons will be pushed to the P region, in the P region, electrons and holes compound, and then will be issued in the form of photons of energy, which is the principle of LED lights. And the wavelength of light, which is the color of light, is determined by the formation of the P-N junction material.