Tungsten halogen lamps are available for operation on mains voltage. They usually have a special fixing. Some feature a screw fixing and an additional external glass capsule and can be used just like conventional incandescent lamps. The advantages of the low-voltage halogen lamp primarily concern the high luminous power for its small dimensions. The lamp enables compact luminaire designs and a very narrow focussing of the light. Low-voltage halogen lamps are available for different voltages and in various shapes and must be powered via transformers. The lamps emit light in all directions. Halogen lamps with low-pressure technology are permitted for all corresponding luminaires. Halogen lamps without low-pressure technology are only permitted in luminaires with protective cover. The advantages of the low-pressure version are improved luminous flux throughout the entire service life.

From left to right: tungsten halogen lamp for nominal voltage with E27 fixing and enveloping capsule, with bayonet fixing, with double-ended fixing. Low-voltage halogen lamp with axial filament