Intermatic® Stem Mounting Photocontrol, Series: K4100, 120 VAC, 15/8.3 A, 50/60 Hz, 1800 W Tungsten, 1000 VA Ballast, SPST, 30 to 90 sec, 18 AWG Wire, Thermal Type (Cadmium Sulfide) Sensor, 1 to 5 FC ON/3 to 15 FC OFF, Environmental Conditions: -40 to 70 deg C Temperature, Stem Mount, Polycarbonate, Gray, 1-9/16 in L x 1-9/16 in W x 3 in H