Attributes . Photo Cell, 2.15 in Height, Polypropylene Housing Material, +158 °F Maximum Operating Temperature, -40 °F Minimum Operating Temperature, Built-In Time Delay Prevents False Cycling Caused by Lightning Flashes or Stray Headlights;Utility Grade Photocontrols Special Features, cULus Certified Standards Met, Contact Position At Night Normally Closed;Single-Pole;Single-Throw Switch Type, 120 V Voltage Rating, 1 yr Warranty, 1800 W Wattage, 2 lb/EA Weight . Names