LED light-emitting diode is a solid-state semiconductor device that can convert electrical energy into visible light, which can directly convert electricity into light. The heart of the LED is a semiconductor chip, one end of the chip is attached to a bracket, one end is the negative electrode, and the other end is...

    The basic structure of the LED lantern is an electroluminescent semiconductor material chip. It does not emit light through the electron transition inside the atom, but by applying a voltage to both ends of the PN junction of the LED, so that the PN junction itself forms an energy level, and then electrons jump at ...