4000W Adjustable Voltage Speed Controller

Dimensions: 120 x 65 x 55 mm. Weight: Not specified. Max load power: 4000W (2000W continuous). Input voltage: AC 220–250V. Output voltage: continuously adjustable from AC 0–220V. Max current: 15A (9A continuous). EU plug compatible with Germany, France, Spain, Italy, Indonesia and other EU/230V regions. Housing made of flame-retardant, heat-resistant plastic — resists discoloration, deformation and cracking. Internal conductive parts constructed from thickened phosphor bronze for enhanced durability and longevity. Features precision voltage regulation via rotary knob with ±1V control accuracy. Integrated digital LED display shows real-time output voltage clearly, even in low-light workshop conditions. Includes independent power switch and built-in overload/short-circuit protection — automatically cuts power if instantaneous current exceeds 15A. Status indicator light provides visual confirmation of operational mode. Designed for resistive and inductive loads only: compatible with angle grinders, exhaust fans, tungsten filament bulbs, electric furnaces, marble machines and blowers. Not suitable for devices containing electronic circuitry — including microwave ovens, induction cookers, rice cookers, water pumps, washing machines, LED lamps or any capacitive or board-based electronics.