NSI Photocontrol, Button, Series: 3000, 120 VAC, 50/60 Hz Frequency, 2000 W Tungsten, 1200 VA Ballast, 1NC-SPST Contact Form, 2 min Timing, 16 AWG Wire, Cadmium Sulfide Cell Sensor, 1 to 5 FC (ON)/3 to 15 FC (OFF) Ratio Sensitivity, Environmental Conditions: -40 to 140 deg F Operating Temperature, Flush Mounting, Lexan, 2 in H x 1 in W x 1-1/2 in D Dimensions