LED Bulb Printing Machine

The method for manufacturing an LED bulb comprises manufacturing terminals and elements of the bulb, including a circuit board with the LEDs, an LED power supply, a base and a light diffuser; manufacturing a casting mould for a heat-exchange element; placing at least the circuit board with the LEDs in the casting mould ...The material used most often in LEDs is gallium arsenide, though there are many variations on this basic compound, such as aluminum gallium arsenide or aluminum gallium indium phosphide. LEDs work on the principle of Electroluminescence. On passing a current through the diode, minority charge carriers and majority charge carriers recombine at the junction. On recombination, energy is released in the form of photons.