Technical Advantage: 220-240Vac 3100W inline trailing edge phase-cut dimmer provides silent dimming operation with no buzzing. Preset lowest brightness level with a dimming range of 0-100%. Premium Quality: Built-in protections include overload, overcurrent, and overtemperature protection for reliable performance. Eyes Protection: Smooth dimming from 0% to 100% helps eyes gradually adjust to changing light levels, reducing eye strain and discomfort from excessive brightness. Energy Savings: Compatible with up to 50W dimmable LED bulbs or 100W incandescent/halogen bulbs. Dimming capability from 0% to 100% helps reduce energy consumption and extends bulb lifespan. Note: Confirm that your LED bulb is labeled as "dimmable" before use. Non-dimmable LEDs may only turn on/off or flicker when used with this dimmer. Not suitable for inductive loads such as fans or motors. Color: White Material: Plastic Package Contents: 1 x Dimmer Switch (other items not included) Note: Actual color may vary slightly due to lighting and display differences. Measurement error allowance is ±13 cm.