1,LED Light Dimmer Switch 2,PWM dimmer switch 3,memory function 4,stepless dimmer settings 5,stable current Features:Touching the metal pad ... level.l Operates on a 2 wire system, and fits in a standard wall box;l Lights turn on at last ... spacing60mmMatching wall box75*75*50mmDimension86*86*43mmWeight72gWiring Diagram: LED Light Touch Dimmer Switch