GE Illuminated Selector Switch, Heavy Duty Oiltight/Watertight Standard Transformer, Series: CR104P Series, 30.5 mm Size, Maintained Contact Mode, Knob Operator, 3 Positions, Left to Right Throw, Cam Code: 4, Incandescent Lamp, 3 W Lamp, Screw Terminal, NEMA 1/3/3R/3S/4/4X/12/13/IP2X Enclosure, Environmental Conditions: -13 to 158 deg F Operating Temperature, -40 to 158 deg F Storage Temperature, 50 to 92% Relative Humidity