Intermatic K4000 Thermal Series 1800W Incandescent and HID compatible Button Dusk to Dawn Light Control, Grey

The K4000 Series Fixed Position Mounting Photo Controls are thermal-type photo controls that fit into a standard outlet box, post lamp or wall pack. The photo controls provide dusk-to-dawn lighting control, along with 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 bi-metal and composite resistor for reliable long-life operation over ambient temperature extremes.|Mechanical bimetal switch with Cadmium Sulfide photocell|Compact size fits into standard outlet box, post lamp, wall pack and other lighting fixtures|Delay feature prevents unwanted OFF switching|3/8 in. -18 NPSM, 3/4 in. long stem with locking nut and washer gasket|Perfect for use with parking lot lighting, landscape lighting, exterior lighting, pedestrian pathway lighting, street lighting and more