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Intermatic K4121C - Photo Control

Thermal Type Photocell - Stem Mounting - Dusk-To-Dawn - 120 Volt

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$12.72 ea.
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MPN (Part No.) K4121C
Width 1.56 in.
Voltage 120
Length 3 in.
Mounting Stem
Start Temp. (Max) 150 Deg. F
Depth 1.56 in.
Case Quantity 12
Watts Ballast 1000
Watts Tungsten 1800
CSA Listed Certified
Start Temp. (Min) -40 Deg. F
Height 3 in.
Maximum Current 15 Amps
UPC 007827500201
Brand Intermatic
CA Title 20 Compliant
Safety Rating UL Wet Location


This Intermatic K4121C thermal type photo control provides dusk-to-dawn lighting control of security lights, billboard lights, walkway lights, parking lot lights, and flood lights and features a delay action, which prevents your lights from switching off due to lightning or car headlights. Functioning in temperatures from -40 degrees to 158 degrees Fahrenheit, this stem mounting photocell features a light level slide and a standard 1/2-inch stem and 6-inch leads for safe and secure mounting. This photocell not only comes with a nut and a washer to complete installation, but also features a sonic-welded polycarbonate case and lens to seal out moisture, ensuring your unit is protected from the elements. The unit works on 120 volt systems and also features a dual-temperature compensating bi-metal and composite resistor to withstand temperature extremes; this photocell is a great choice for your photo control needs. Note: Not compatible with LED Fixtures