Technical Advantage: 220~240Vac 3-100W inline trailing edge phase-cut dimmer; dimming process is silent with no buzzing Lowest brightness can be preset; dimming range is 0-100% Features overload protection, overcurrent protection, and overtemperature protection Eye Protection: Dim lights from 0% to 100% to help eyes gradually adjust to light or darkness; reduces eye strain and protects against overly bright lighting Energy Savings: Compatible with up to 50 dimmable LED bulbs or 100 incandescent/halogen bulbs; dimming range 0-100% helps reduce energy consumption and extends bulb life Note: Before purchasing, confirm that your LED bulb is labeled as "dimmable." If not, this dimmer cannot be used for dimming and may only turn the lamp on/off or cause flickering. Not suitable for inductive loads or fan speed control Color: Black Material: Plastic Package Contents: 1 x Dimmer Switch Note: Other items not included. Lighting and display differences may cause slight color variation between image and actual item. Measurement error allowed within +/- 1-3 cm