Aluminum switch plate mounted photo control for indoor/outdoor use turns lights On at dusk, Off at dawn. Will fit a 1/2" or 3/4" knockout, operates at -25 deg. to 125 deg. F. Mounting nut and gasket included. Ratings: 1200W incandescent, 1000 VA ballasted lighting, CFL compatible, 10A/120V. UL listed. Carded.