Occupancy Sensors provide automatic ON/OFF switching of lighting loads to enhance convenience, security and long-term energy savings. Daylight sensors are battery-powered sensors that save energy by dimming or turning off electric lighting when sufficient daylight is available. The sensor detects light in the space and then adjusts the lights to take advantage of daylight, thus conserving energy. These sensors are being incorporated into most new projects and as many retrofit/retrocommissioning projects as possible, with funding and electrical/mechanical application being key factors.