Photo Control, 105 to 305 V Ac, <0.5 W @ 277 Vac, 2.97 In Length, 1.3 In Width, 2.721 In Height, Sensor and Relay Swich Switch Type, Non-Drifting Silicon Sensor, -40 °F Operating Temperature, +158 °F Operating Temperature, Stem and Swivel Fixed Mount, 8 Yr Warranty, 0.3 LB