1,LED Light Dimmer Switch 2,PWM dimmer switch 3,memory function 4,stepless dimmer settings 5,stable current ... pad will change the brightness of the light. Once the hand is off, the switch will lock and memorize the brightness level ... hole spacing60mmMatching wall box75*75*50mmDimension86*86*43mmWeight72gWiring Diagram: LED Light Touch Dimmer Switch