"WESTEK" COMMERCIAL TWIST LOCK DUSK TO DAWN LIGHT CONTROL *For mercury, vapor and sodium bulbs *Max load Tungsten: 8.3A*Max load Ballasted: 1800VA, 15A *Connection type: wire in *Includes B-metal switch with 3 prong twist lock plug *Fits dusk to dawn fixtures with NEMAN 3 prong receptacles *Heavy duty *Withstands extreme temperatures (-50 deg to +150 deg) *Easy installation (just twist) *Saves energy and extends bulb life *Ideal for road parking lot and driveway lighting *Replaces Ace no. 33162 *Discovery CON, NBR, SUP