Enhance control over your AC electric tools with this versatile Electronic Voltage Governor, designed for precise regulation of speed, temperature, voltage, and lighting intensity. Crafted from high-quality, flame-retardant ABS plastic, this variable speed controller boasts a durable insulated shell resistant to discoloration, deformation, and high temperatures. Its internal components feature thickened phosphor bronze, ensuring reliable performance and an extended service life. Key Features: · Wide Compatibility: Effectively regulates exhaust fans, filament bulbs, electric furnaces, angle grinders, marble machines, and blowers. Please note, it is not compatible with appliances containing circuit boards or capacitive electronic components such as microwave ovens, induction cookers, rice cookers, water pumps, washing machines, or LED energy-saving lights. · Durable and Safe Construction: The insulated ABS plastic shell offers flame resistance and robust protection, while thickened phosphor bronze internal fittings provide safe, long-lasting operation. · High Precision Voltage Control: Equipped with a precision pressure regulating knob, this speed controller achieves voltage regulation accuracy up to 1 volt. A clear 3-digit digital display with LED backlighting allows real-time monitoring of output voltage for accurate adjustments. · Advanced Protection Features: Integrated overload, overvoltage, and short circuit protection automatically shuts off power if the instantaneous current exceeds 15A, safeguarding both the controller and connected equipment. An indicator light clearly displays the operational status of the device. · Convenient Back Hook Design: A specially designed hook on the rear enables easy hanging on tool bags or kits, enhancing portability and ease of use during operation. This plug-and-play design supports quick setup and practical application. Specifications: · Plug Types: US / EU / UK / AU (Optional) · Input Voltage: AC 100~120V (US); AC 220~240V (EU, UK, AU) · Output Voltage: 0~120V (US); 0~220V (EU, UK, AU) · Maximum Power: 4000W · Load Power: 2000W · Maximum Current: 15A · Load Current: 9A · Material: ABS Plastic · Item Size: 12 x 6.5 x 5.5 cm (4.72 x 2.56 x 2.16 inch) · Package Size: 15 x 12 x 11 cm (5.9 x 4.72 x 4.33 inch) · Package Weight: 500g (17.64 oz) Package Includes: · 1 x Electronic Voltage Governor This Electronic Voltage Governor is an indispensable tool for users seeking fine-tuned control over various AC-powered devices within its compatible range. Its robust build, precise voltage regulation, and multiple safety features make it an ideal solution to enhance safety, efficiency, and performance in both professional and DIY settings.