Item Type: Digital Rotating Dimmer Switch Material: ABS Battery: 2 x CR2032 button cell(excluded) 1DIGITAL DIMMING SWITCH: MCU integrated digital circuit control technology enables smooth dimming of the widest range of LEDs with high consistency, high compatibility and variable dimming curves. 2EYE PROTECTION EFFECT: The dimmer switch allows the light to fade in smoothly, allowing your eyes to adjust to the new light level and ensure your eye's safety. 3CIRCUIT PROTECTION: The dimmer switch reduces the current when the light is on to extend the life of the bulb and dimmer. 4EASY INSTALLATION: This dimmer switch is very quick to install and can replace an existing switch or dimmer in less than 15 minutes. 5UNIVERSAL COMPATIBILITY: This switch knob works with 150W dimmable LED, 150W CFL and 600W incandescent bulbs on the market, and supports for Tuya and for Zigbee.1 x Digital Rotating Dimmer Switch