Inline LED Dimmer Switch, Built-in Rotary ON/OFF and Knob Control Dimmer for Dimmable 3-100W LED/Incandescent Technical Advantage: 220~240Vac 3-100W inline trailing edge phase-cut dimmer. The dimming process is completely silent and will not produce a buzzing sound. The lowest brightness can be preset, with a dimming range of 0-100%. Premium Quality: High-quality construction with overload protection, overcurrent protection, and overtemperature protection. Eyes Protection: Adjust brightness from 0% to 100% to help eyes gradually adapt to changes in light levels, reducing eye strain and protecting against overly bright lighting. Energy Savings: Compatible with up to 50W of dimmable LED bulbs or 100W of incandescent/halogen bulbs. Dimming range of 0-100% helps reduce energy consumption and extends bulb lifespan. Note: Before purchasing, confirm that your LED light is labeled as "dimmable." Non-dimmable LEDs may only turn on/off or flicker when used with this dimmer. Not suitable for inductive loads, fans, or motor speed control. Color: White Material: Plastic Package Contents: 1 x Dimmer Switch Note: Lighting and display differences may cause slight color variations between the product image and actual item. Measurement tolerance: +/- 1-3cm.