Photocells, from Greenbrook, Countrywide Electrical and Forum Lighting.
A photocell is a device that is used to detect and measure light. The dusk to dawn photocell sensor switch will switch items such as lights and fans on during the night and off during the day. A photocell sensor can be regarded as a transducer that is used to detect the light intensity. We stock a comprehensive range, from Powerpoint Electrics in North Cheam.