Features: Speed dimming power: 15W-300W; delay power: 15W-80W. Made of high-quality flame-retardant materials, durable and safe to use. No bottom box, no slotting, direct wiring, easy installation. Suitable for most fans of 15w-300w, such as household ceiling fans, range hood fans, ventilation fans. Note: The load must not be short-circuited. Specifications: Material: Plastic Speed and Dimming Power: 15w-300w Delay Power: 15w-80w Speed Regulation Mode: Stepless Speed Regulation Installation Method: Surface Installation Color: White Dimensions: 86x86mm/3.38x3.38inch Rated Voltage: 250v Rated Current: 10a Rated Power: 200w Rated Frequency: 50/60hz Package Includes: 1x Speed Control Switch note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.