Technical advantage: 220~240Vac 3-100W inline trailing edge dimmer, the dimming process is completely silent and produces no buzzing sound! The lowest brightness can be preset and the dimming range is 0-100%. Premium quality: Excellent quality with overload protection, overcurrent protection, overtemperature protection. Eye protection: Dim the light 0% - 100% to allow your eyes to gradually adapt to bright light or darkness; reduce eye strain and protect your eyes from too bright light. Energy saving: Works with max 50 watts dimmable LED bulbs or 100 watts incandescent/halogen bulbs, dimming range 0 - 100% to lower energy costs and extend bulb life. Note: Before purchasing, please confirm if your LED bulb is marked as \"dimmable\". If not, you cannot use this dimmer for dimming, you can only turn the light on/off or the light will flicker. Cannot be used for speed control of inductors and fans. Color: White Material: Plastic Package contents: 1 x Dimmer Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.