The best road to progress is freedom's road. - JFK
Texas
"Electric lamp" and "Light bulb" redirect here. For the item of furniture, see light fixture. For the music by Fujiya & Miyagi, see Lightbulbs (album).
Incandescent (left) and fluorescent (right) lightbulbs turned on
A lamp is a replaceable component that produces light from electricity.[1] Compact lamps are commonly called light bulbs; for example, the incandescent light bulb. Lamps usually have a base made of ceramic, metal, glass or plastic, which secures the lamp in the socket of a light fixture. The electrical connection to the socket may be made with a screw-thread base, two metal pins, two metal caps or a bayonet cap.
Electrodeless lamp, a gas discharge lamp in which the power is transferred from outside the bulb to inside via electromagnetic fields
Uses other than illumination
A clear glass 60 W Neolux light bulb
Lamps can be used as heat sources, for example in incubators and toys such as the Easy-Bake Oven.
Filament lamps have long been used as fast acting thermistors in electronic circuits. The filaments are most likely made out of tungsten. Popular uses have included: