Plastic shell, smooth without burrs, durable. Embedded power line switch, inline switch, single line control dimming, easy to use. Minimum brightness preset function, dimming range can be customized to a certain percentage through simple steps. Easy to install. Just cut the wire where the switch needs to be installed, and then connect the wire into the terminal and tighten it. Suitable for dimmable LED bulbs, incandescent bulbs, halogen lamps, table lamps, floor lamps, and other compatible bulbs. Adjustable power range: LED bulb: 2W - 25W; CFL bulb: 2W - 25W; Incandescent/Halogen bulb: 5W - 80W. Smooth dimming without flicker, with overheating protection, safe to use. Switch knob dimming function, 0-100% full brightness adjustment range. Dimmable LED Range: 2W - 25W Dimmable CFL Range: 2W - 25W Incandescent/Halogen Bulb Range: 5W - 80W Features: Full Range Dimming Product Name: LED Dimmer Switch Voltage: 220V Color: Black Material: Plastic Package Contents: 1 x LED Dimmer Switch Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual product. Measurement may vary by +/- 1-3 cm.