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Squealing at startup or glazed
Skin oils carbonize under high heat
Precision-engineered for 208-240V
making it a preferred choice for commercial cooking equipment and industrial heaters
Intermatic K4121C Control 320788-703 Squealing at startup or glazedThe Intermatic K4121C is a professional grade 120V stem mount photo control engineered for reliable dusk to dawn automation of outdoor lighting systems. Utilizing a mechanical bimetal switch paired with a cadmium sulfide photocell, this unit ensures precise 120 VAC operation across street, perimeter, and parking lot lighting applications. The thermal photocontrol technology includes a built in 30 to 90 second time delay, which prevents nuisance