An LED (Light Emitting Diode) light bulb is a type of lighting device that uses light-emitting diodes as the source of illumination. Unlike traditional incandescent bulbs, LED bulbs generate light by passing an electric current through a semiconductor material, causing the diodes to emit photons.
An incandescent light bulb is a traditional type of lighting device that produces light by heating a wire filament until it becomes hot enough to emit visible light. In a typical incandescent bulb, an electric current passes through a tungsten filament enclosed in a glass bulb filled with an inert gas, usually argon. The high temperature of the filament causes it to glow, producing light.