【Heavy Duty AC Motor Speed Controller】 This AC motor speed controller 110-120V (also works as 120V AC motor speed controller and 115 volt motor speed control) supports resistive load up to 2000W and inductive load up to 1000W. Perfect for lathe speed control, router speed control digital, grinder speed control, and 120V single phase motor speed controller applications. 【Precise Variable Speed & Voltage Regulation】 Our variable speed controller functions as a voltage controller 120V, speed regulator, fan rheostat, and current regulator. With LED display for precise adjustment, it works great as a 120V motor with speed control, outdoor fan speed control, or 120V AC fan speed control knob for universal use 【Advanced Overload & Safety Protection】 This solid-state AC motor speed controller is designed with short-circuit protection, overload protection, and surge protection, providing safety in router motor speed controllers, fan motor controllers 120V, and plug-in speed controllers. The flame-retardant shell ensures long-lasting durability 【Portable & Easy to Install】 The plug-in fan speed controller design allows simple installation. With a clip-on speed control, it is compatible with inline fan speed control switch, attic fan controller, outlet plug with speed control for fan, and plug-in voltage regulator. Works seamlessly as a fan control speed dial or motor speed regulator for home and industrial tools 【Wide Application & Compatibility】 This fan motor speed controller 120V is suitable for electric drills, blowers, AC universal motors, LED lights, routers, pumps, grinders, and electronic tools. Works as a 120V VFD AC motor speed controller, 20 amp speed controller, PWM fan controller 120V, and global industrial variable speed control. Not for devices with circuit boards or capacitor components such as microwaves or induction cookers