LED Straw Hat Lamp Beads red F3 light-emitting diode

What is the working principle of led strips? Light Emitting Diode SMD From a physical level, the electron in an atom has many energy levels. When the electron jumps from a high energy level to a low energy level, the energy of the electron is reduced, and the reduced energy is converted into photons emitted. A lot of these photons are lasers. However, the difference is that the LED does not emit light through the transition of electrons inside the atom, but by applying a voltage across the PN junction of the LED, the PN junction itself forms an energy level (in fact, a series of energy Level), and then electrons jump at this energy level and produce photons to emit light Light Emitting Diode Led. When the current acts on the chip through the wire, the electrons will be pushed to the P area, where the electrons recombine with the holes, and then they will emit energy in the form of photons. This is the principle of the LED Light emitting light. The wavelength of light is also the color of light, which is determined by the material forming the P-N junction. This is also one of the principles of LED light bar luminescence Patch Light Emitting Diode.