I HAVE A HIGH INTENSITY LAMP THAT THE SLIDE DIMMER SWITCH GAVE UP 3 YEARS AGO.I FINALLY DECIDED TO REPAIR IT WITH THE LUTRON SLIDE DIMMER SWITCH.IT WAS EASY TO ASSEMBLE TO THE LIGHT CORD. IT TURNS ON THE LAMP AND EASILY ADJUSTS THE LAMP TO THE DESIRED BRIGHTNESS.ALSO YOU CANT BEAT THE PRICE !