220V Angle Grinder Speed ​​Controller Stepless Electronic Voltage Stabilizer, suitable for electric drills, angle grinders, fans, and other equipment. Product Features: * Brand New, High Quality * Wide Application: This speed controller can adjust speed, temperature, voltage, and lighting. It is widely used in exhaust fans, tungsten filament lamps, electric furnaces, angle grinders, marble cutters, and blowers. Note: Do not use with electrical appliances with circuits, such as microwave ovens, induction cookers, rice cookers, water pumps, washing machines, LED energy-saving lamps, circuit boards, and capacitive electronic components. * High-Quality Materials: This speed controller is made of high-quality ABS plastic. The outer shell is insulated and flame-retardant, not easily discolored, deformed, or cracked, and resistant to high temperatures. Internal parts are made of thickened phosphor bronze, ensuring safety, reliability, and a longer service life. * High-Precision Display: The fan speed controller uses a precision voltage adjustment knob to adjust the voltage, offering high accuracy and stability, with a control precision of up to 1 volt. The digital display screen allows you to accurately understand the machine's operating voltage. LED indicator lights make the real-time voltage display clearer. * Overload and Overvoltage Protection: The variable speed fan controller is equipped with an independent voltage control switch, featuring overload and short-circuit protection. When the instantaneous current exceeds 15 amps, the switch automatically cuts off the power to protect the controller. An indicator light also displays the switch's operating status.* Rear Hook Design: For convenient use of the angle grinder, a hook has been specially designed on the back of the speed controller, allowing it to be hung on a tool bag for easy carrying and use. Plug and play, simple and practical. Specifications: Product Name: Electronic Voltage Regulator Interface: European, Australian, American, British (optional) Input Voltage: AC220V~250V Output Voltage: AC0-220V (adjustable) Maximum Power: 4000W (Load Power 2000W) Maximum Current: 15A (Load Current 9A) Product Dimensions: 120*65*55mm Note: American plug power supply voltage is 100-120V, input 100V, output 0-100V; all others are 220V. Precautions and Instructions for Use: 1. This product's input voltage is AC voltage, and the output voltage is also AC voltage. The maximum input value equals the maximum output voltage. A decrease in voltage will reduce power. It does not have a boost function. This product is not suitable for users with extremely high or low speed requirements. 2. This product is not compatible with smart home appliances containing circuit boards and other electronic components (such as household water pumps, induction cookers, rice cookers, and ordinary LED energy-saving lamps). Only most fans and brushes have adjustable speeds; other motors cannot be adjusted independently. If the motor itself has gears or high/low speed wires, connecting it to the controller may result in a buzzing AC frequency noise or prevent speed adjustment.3. Keep this product out of reach of children and away from fire. Do not insert any foreign objects other than the plug into the power outlet.4. This product is not waterproof and is for dry indoor use only. When using it in damp areas such as bathrooms, kitchens, or near fish tanks, please be careful of water splashes. Product Applications: Speed ​​Control: Fans, brushed motors, power tools (without speed switch) Temperature Control: Electric stoves, ovens, water heaters, heating rods, electric blankets, etc. (with screens and smart models, but not adjustable in temperature) Dimming: Tungsten filament lamps, incandescent lamps, halogen lamps, energy-saving lamps, light strips, etc. (LED energy-saving lamps with circuit boards are not dimmable) Package List: 1 x Speed ​​Controller Notes: 1. Due to factors such as monitor brightness, the actual product color may differ slightly from the website image. 2. Please allow for slight manual measurement errors.