Intermatic Stem and Swivel Mounting Photocontrol, Series: K4200, 120 V AC, 15/8.3 A, 50/60 Hz Frequency, 1800 W Tungsten, 100 VA Ballast, SPST Contact Form, 30 to 90 s Timing, 18 AWG Wire, Thermal Photo Control/Cadmium Sulfide Sensor, 1 to 5 fc Turn On/3 to 15 fc Turn Off Sensitivity, Environmental Conditions: -40 to 158 deg F Operating Temperature, Box/Fixture Mounting, Polycarbonate, Gray, 1-9/16 in L x 1-9/16 in W x 5-1/2 in H Dimensions