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