The tungsten halogen reflector lamp emits a whiter light than conventional incandescent lamps. Its light colour is in the range of warm white. Due to the continuous spectrum , the colour rendition is excellent. Its compact form makes the tungsten halogen reflector lamp an ideal point light source. The particularly good directability of the light produces brilliance. The luminous efficacy and life of tungsten halogen reflector lamps is above that of ordinary incandescent lamps. Tungsten halogen reflector lamps can be dimmed and do not require any additional control gear; low-voltage halogen reflector lamps, however, must be powered via transformers. Narrow or wide beam reflectors are available. Lamps with coolbeam reflector place less thermal loading on the illuminated objects. Lamps with an integrated cover glass permit operation in open luminaires.