1,Dimmer Switch for LED Lights 2,PWM dimmer switch 3,Memory Function 4,5 dimmer settings 5,stable current Features:Pressing the ... the light. Once the keypad is released, the switch will lock and memorize the brightness level.l Operates ... humidityNon-condensing 20-90%Installation hole spacing60mmMatching wall box75*75*50mmDimension86*86*43mmWeight81g Wiring Diagram: Keypad LED Light Dimmer Switch