Easy to install: 1 pin switch;Standard size, wall plate without screws;The instructions take you through the wiring process.Power supply: 500 with equipment;AC 110–240VTouch Control & LED Backlight: Hardened glass touch screen design, 40ms high speed reaction.Strong/weak blue display clearly shows on and off, easy to find in the dark, but no effect on sleep.Low power consumption and long lifespan.Safety protection: fire-detailed equipment and no arcs.The 4mm thick hardened glass shutter is waterproof and safer than a push button, prevents electric shock even when touched with wet hands.No color elevation, easy to clean and no scratches.Note: Due to the nature of our switch, you can only turn on the power after installing the glass plate.Otherwise, the switch will not work properlyAfter testing the function of the touch switch, you need to turn off the main power.Gently slide the glass panel on each side to make sure it engages the clips on the switch.Turn on the appropriate circuit breaker and wait at least 3 minutes before using the switch. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store