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Automatic Lighting Type
Photocell Sensors
Sensor Type
Motion / Photocell Sensors
Photocell Sensor
Outdoor Rated
Maximum Power Handling
3000 Watts
120V AC
Ease of Installation
Intermediate (Installs < 60 minutes)
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Automatically Control Lights Based on Sunlight
Intermatic K4221C Stem and Swivel Mount Thermal Type Photo Control
Intermatic K4221C Stem and Swivel Mount Thermal Type Photo Control
Intermatic K4221C Stem and Swivel Mount Thermal Type Photo Control
Item# 48718
Price: Normally $19.24 
Hot Deal $10.11
Free shipping on orders over $175 - See Details


  • Light level slide adjustment
  • Equipped with light level slide adjustment and 1/2" threaded stem
  • Washer gasket and locking nut included
  • UL/CSA approved
  • 5 Year Warranty

Essential Info

The Intermatic K4221C Stem Stem and Swivel Mount Thermal Type Photo Control is designed to turn 120V circuits on and off automatically. The Photo Control installs with ease to save money on your electric bill making it the economical answer for exterieor lighting control. The Control is equipped with a light level slide adjustment and provides a 1/2"-14 threaded stem. A washer gasket and locking nut are packaged with each photo control.


  • Watts Tungsten: 1800
  • VA Ballast: 3000
  • AMPS Tungsten: 25
  • AMPS Ballast: 25
  • Volts: 120
  • Temp. Range (F): -40 to 158
  • Length (In.): 2-5/16
  • Depth (In.): 1-9/16
  • Width (In.): 1-9/16
  • Standards: UL Listed (E42722), CSA Certified (LR38068)
  • UPC: 078275029583
  • Weight: 0.30
  • Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Intermatic Inc, Tel: (815) 675-7000


    3 Ratings
    5 star: 100%  (3)
    4 star: 0%  (0)
    3 star: 0%  (0)
    2 star: 0%  (0)
    1 star: 0%  (0)
    Average Customer Rating
    (3 customer ratings)
    Share your thoughts with other customers
    LENNY -- coeur d'alene, ID   9/28/2012
    The articulating mount allows proper orientation for nearly any situation. Works great, and the sliding attenuator allows you to fine tune the level of ambient light that will trigger the sensor.
    ROBERT B BOWER -- centreville, MD   7/30/2012
    arrived on time and was what I expected

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