The INTERMATIC K4221C is a 120-Volt Stem and Swivel Mount Thermal Photocontrol designed for reliable dusk-to-dawn control of outdoor lighting. This unit features a mechanical bimetal switch with a Cadmium Sulfide photocell, ensuring automatic ON/OFF operation. Its high-strength, UV-resistant housing and 1/2 inch-14 NPSM threaded stem allow for flexible installation on standard outdoor light fixtures or electrical boxes. It is compatible with Fluorescent, HID, and Incandescent lighting applications.
120-Volt operation for various lighting systems.
Stem and Swivel Mount design for flexible installation and optimal sensor positioning.
Mechanical bimetal switch with Cadmium Sulfide photocell for reliable dusk-to-dawn control.
Product Highlights
Provides automatic dusk-to-dawn lighting control for outdoor fixtures.