Intermatic K4121C - Dusk to Dawn Photocell
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Intermatic K4121C - Photo Control

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

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.


Stock Code:  ELEC-K4121C
Part No.:  K4121C
Voltage:  120
Width:  1.5625 in.
Mounting:  Stem
Start Temp. (Max):  150 Deg. F
Watts Tungsten:  1800
UL Listed:  Yes
Brand:  Intermatic
UPC:  007827500201
Length:  3 in.
Depth:  1.5625 in.
Start Temp. (Min):  -40 Deg. F
Watts Ballast:  1000
CSA Listed:  Certified
Case Quantity:  12

Customer Reviews

Rated 4.6 out of 5 by 5 reviewers.
Rated 4 out of 5 by Quality product! We have used Intermatic photo eyes in the past and have always been satisfied with their product. April 22, 2013
Rated 5 out of 5 by This photocell has a long lifespan I install lots of photocells, and intermatic has one of the best available. Long lasting and easy to test. May 18, 2012
Rated 5 out of 5 by ease of wiring and mounting worked great for outside security lights February 23, 2012
Rated 5 out of 5 by Bought 4 and 4 work great. I know it's a fairly simple item but what the heck. It works and works well and it was a great price from 1000bulbs. Thanks a bunch. October 6, 2011
Rated 4 out of 5 by Good Product, Excellent Service, Quick Shipping Our customer received their product on time and we looked like the hero for being able to supply something that the manufacturer could not because 1000 Bulbs had the necessary items in stock and available! June 7, 2011
1-5 of 5 Changing the way people buy lightbulbs