Incandescent light bulb: The most common type of light bulb, which produces light when electricity heats a thin metal wire. Incandescent bulbs use more electricity than newer compact fluorescent light bulbs (CFLs).
Incandescent light bulb: The most common type of light bulb, which produces light when electricity heats a thin metal wire. Incandescent bulbs use more electricity than newer compact fluorescent light bulbs (CFLs).