What is the difference between an incandescent bulb and an LED?
Incandescent bulbs create light by use of a filament. When power is applied, the filament glows, generating heat, in turn, producing light. LEDs are the opposite. LEDs create light though a “cold process”, when power is applied to semiconductors (usually gallium, arsenic and phosphorus) they’re stimulated by the movement of electrons; thus creating photons, the light that is visibly seen by humans.
