MULTI FUNCTIONAL DESIGN: Take full control of your fan speed control switch and power with this AC 120V speed controller. fan speed control switch works by smoothly adjusting the input voltage to your device. Built with reliability in mind, motor controller offers multi-layer safety: surge and peak voltage protection guard against power spikes, while an automatic shutdown feature activates if current exceeds 15A, preventing overloads and ensuring operational safety HIGH-CAPACITY PERFORMANCE: This 110-120V/60Hz AC variable speed controller has a 15A max (10A rated) current capacity, supporting up to 2000W resistive or 1500W inductive loads. variable speed controller includes a 6-foot cable with US plugs, and speed controller is built with a flame-retardant ABS shell and thickened phosphor bronze internal components for safety and durability HIGH-PRECISION VOLTAGE METER: fan speed controller A high-precision LED voltage meter provides a sharp, clear readout of the operating voltage at a glance. ant: This fan controller is compatible only with AC brushed motors and must not be used with brushless motors WIDELY APPLICABLE SCENARIOS: This versatile 120V variable speed motor is designed to regulate speed and power for a variety of common equipment, including electric fans, exhaust fans, angle grinders, blowers, AC drills, incandescent lamps, kettles, and electric heaters. Please note: variable speed motor is not compatible and must never be used with appliances that contain internal circuit boards or capacitor-based electronics, such as microwave ovens, induction cookers, rice cookers, water pumps, washing machines, or LED energy-saving lamps, as this may cause and pose a safety risk WORRY FREE AFTER- SERVICE: we are committed to providing customers with high-quality AC fan speed motor control switch 120v 15a, so we can proudly assure you that we provide 30-day no-questions-asked . If you have any quality issues or suggestions, please feel free to communicate with us at any time