Photo Control, 105 to 305 V Ac, <0.5 W @ 277 Vac, 2.25 In Length, 1.24 In Width, 2.25 In Height, Sensor and Relay Swich Switch Type, Photo Sensor, -40 °F Operating Temperature, +158 °F Operating Temperature, Button Fixed Mount, 8 Yr Warranty, 0.1958 LB/Ea