Technical Advantage: 220~240Vac 3-100W inline trailing edge phase-cut dimmer, the dimming process is completely silent and will not make a buzzing sound! The lowest brightness can be preset, and the dimming range is 0-100%. Protection: Quality with overload protection, overcurrent protection, over-temperature protection. Eye Protection: Light from 0% - 100% allows your eyes to gradually adjust to bright light or darkness; reducing eye strain and protecting your eyes from excessively bright light. Energy Savings: Works with a maximum of 50 dimmable LED bulbs or 100 incandescent/halogen bulbs, dimming range 0 - 100% to reduce energy costs and extend bulb life. Note: Please confirm when purchasing if your LED bulb is labeled "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 regulation of inductors and fans. Color: Black Material: Plastic Package Contents: 1 x Dimmer Only the above package content is included; other products are not. Note: Light and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.