Aluminum switch plate mounted photo control for indoor/outdoor use turns lights On at dusk, Off at dawn. Will fit a 1/2-inch or 3/4-inch knockout, operates at -25 degrees to 125 degrees Fahrenheit. Mounting nut and gasket included. Ratings: 1200W incandescent, 1000 VA ballasted lighting, 10A/120V. Incandescent, CFL (compact fluorescent), LED (light emittingdiode), and halogen compatible. UL (Underwriter's Laboratories) listed. Carded.