1,Dimmer Switch for LED Lights 2,PWM dimmer switch 3,Memory Function 4,5 dimmer settings 5,stable current Features:Pressing the keypad ... the light. Once the keypad is released, the switch will lock and memorize the brightness level.l Operates ... on a 2 wire system, and fits in a standard wall ... *86*43mmWeight81g Wiring Diagram: Keypad LED Light Dimmer Switch