Tungsten halogen lamps operate on mains voltage and have similar characteristics to general service lamps, but offer, higher luminous efficacy and functional life. They are dimmed using conventional dimmers for incandescent lamps, due to the continuous spectrum the light emitted has an exceptional colour rendition quality. For this reason, luminaires for tungsten halogen lamps are particularly suitable for use in public or communication areas, especially if the warm white colour of incandescent lamps is required to contrast with areas with neutral or daylight-white fluorescent light.

The main characteristic of ERCO wallwashers is the highly uniform brightness of the wall.
The reflectors of the Lightcast double-focus wallwashers provide the highest level of uniformity for vertical illuminance distribution. The effect of these double-focus wallwashers is achieved using special, internal wallwasher reflectors. Due to this special reflector technology, the lamp is concealed from the direct view of observers, similarly there is no direct light emission to the surface to be illuminated.
The Lightcast double-focus wallwashers have cast aluminium housings which are designed to provide optimum thermal properties according to their particular technical requirements.