The Intermatic K4141C is a photo control that features a stem mounting. The thermaltype photo controls from the K4100 Series have models available with single and multivoltage. This photo control in particular is ideal for street lighting, car lot lighting, parking lot lighting, roadway lighting, billboard lighting, area lighting, municipal lighting, and security lighting. It maintains dusktodawn lighting control with delay action. As a result it excludes loads switching OFF due to lightning and car headlights.For long life operation, the Intermatic photo control s design utilizes a composite resistor and a dual temperature compensating bimetal. Its housing is constructed of polycarbonate. This model has a rating of 3000 Watts and 25 Amps tungsten and 25 Amps ballast at 120 Volts. This Intermatic photo control is California Title 24 compliant and tested accordingly.