The K4100 & K4400 series photocontrols feature stem mounting, thermal-type, controls with single and multi-voltage models. thermal-type photocontrols provide dusk-to-dawn lighting control and a delay action, which eliminates loads switching off due to car headlights and lightning. the thermal-type controls feature a cadmium sulfide photocell and a sonic welded polycarbonate case and lens to seal out moisture. the design utilizes a dual temperature compensating bimetal and composite resistor for reliable long life operation over ambient temperature extremes. these models are California title 24 compliant.

Intermatic® Stem Mounting Photocontrol, Series: K4100, 120 VAC, 15/8.3 A, 50/60 Hz, 1800 W Tungsten, 1000 VA Ballast, SPST, 30 to 90 s, 18 AWG Wire, Thermal/Cadmium Sulfide Sensor, 1 to 5 FC ON/3 to 15 FC OFF, Environmental Conditions: -40 to 158 deg F Operating Temperature, Stem Mount, Polycarbonate, Gray, 1-15/16 in L x 1-15/16 in W x 3-3/4 in H

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Intermatic_K4121C_Specification_Sheet.pdf https://www.iesbuy.com//ASSETS/DOCUMENTS/ITEMS/EN/https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Intermatic_K4121C_Specification_Sheet.pdf

• Mechanical bimetal switch with Cadmium Sulfide photocell
• Delay feature prevents unwanted OFF switching
• Die-cast metal housing
• 1/2 in-14 NPSM threaded stem