Technical Advantage: 220-240Vac 3-100W inline trailing edge phase-cut dimmer; provides silent dimming operation with no buzzing. Lowest brightness can be preset with a dimming range of 0-100%. Premium Quality: Built-in protections including overload, over current, and over temperature protection for reliable performance. Eye Protection: Adjustable brightness from 0% to 100% helps eyes gradually adapt to changing light levels, reducing eye strain caused by overly bright lighting. Energy Savings: Compatible with up to 50W of dimmable LED bulbs or 100W of incandescent/halogen bulbs. Dimming function helps reduce energy consumption and extend bulb lifespan. Compatibility Note: Confirm that your LED bulb is labeled as "dimmable" before use. Non-dimmable LEDs may only turn on/off or flicker. Not suitable for inductive loads such as fans or motors. Color: White Material: Plastic Package Contents: 1 x Dimmer Switch Note: Other items not included. Slight color variations may occur due to lighting and display differences. Measurement error allowed within +/- 1-3 cm.