Robust ProtectionThe variable speed controller, is equipped with multiple protection measures including surge protection, spike protection, and RC absorption. Flame-retardant insulation shell remains stable at high temperatures, with excellent resistance to conductivity, rust, and high voltage for outstanding safety performancePortable DesignWith a clip-on design, it can be easily attached to a belt for convenient operation. Compatible with standard Type A and Type B plugs in the United States. High-precision LED voltage display provides real-time output voltage for easy adjustments at any timeWide CompatibilityCan adjust temperature, speed, light, and voltage settings, suitable for electric fans, exhaust fans, drills, angle grinders, blowers, electric drills, LED lights, and more. Not suitable for appliances with circuit boards and capacitor electronic components, such as microwaves, induction cookers, rice cookers, water pumps, washing machines, LED energy-saving lamps, and similar devicesSpecificationsInput Voltage: 110-120V; Current Capacity: 15A Max (Rated Current 10A); Frequency: 60Hz; Resistive Load: Max 2000W; Inductive Load: Max 1000WOverload ProtectionThe fan speed controller, is equipped with an independent switch for voltage control, featuring overload and short-circuit protection. The switch will automatically shut off when the instantaneous current exceeds 15 amps, ensuring safety for both equipment and users