Any of various devices for producing light or heat, as by electricity or gas

• Lamp

• Bulb

• Filament

The glass housing of an incandescent lamp, filled with an inert gas mixture, usually of argon and nitrogen, to retard evaporation of the filament

• Ballast

• Bulb

• Starter

The threadlike conductor of an electric lamp that is heated to incandescence by the passage of an electric current

• Ballast

• Bulb

• Starter

• Filament

The emission of visible light by a body when heated to a high temperature

• Ballast

• Incandescence

• Starter

• Filament

An incandescent lamp having a tungsten filament

• Tungsten lamp

• Tungsten-halogen lamp

• Infrared lamp

A tungsten-halogen lamp having an infrared dichronic coating for reflecting infrared energy back to the filament, raising lamp efficiency, and reducing radiant heat in the emitted light beam

• Fluorescent lamp

• Tungsten-halogen lamp

• Infrared lamp

An incandescent lamp having a high percentage of its radiant power in the infrared region than a standard incandescent lamp, often having a red glass bulb to reduce the radiated visible light

• Infrared lamp

• Three-way lamp

• Extended-service lamp

An incandescent lamp having two filaments so that it can be switched to three successive degrees of illumination

• Infrared lamp

• Three-way lamp

• Extended-service lamp

A lamp designed for reduced energy consumption and a life longer than the conventionally set value for its general class

• Infrared lamp

• Three-way lamp

• Extended-service lamp

The standard rounded shape for the bulbs of general-service incandescent lamps

• A bulb

• B bulb

• C bulb

• CA bulb