Twilight switch

The twilight switch or twilight sensor automatically switches on or off one or more lights depending on the daylight. Parts of artificial lighting are also taken into account. The built -in light sensor measures the brightness of the area and then registers whether it is already dark enough and the light of a lamp is needed.

Such twilight switches are mainly used outdoors, such as in the lighting of house entrances or entrances. With regard to the increasing importance of energy -efficient lighting, the light sensors are also increasingly used in the interior. The sensitivity of the twilight switch should then be best to regulate, whereby around 2 to 2000 lux illuminated strength is useful for outside.

In order for the twilight switch to work, photo dijung or photo transistors are installed as light sensors. Rarely is photo bereauing. In combination with a motion detector, they also have lamps, which then only concerns in the dark when moving. The twilight sensors can already be integrated or bought individually when buying a lamp.