Features: 1. 2000W speed regulating motor: Input power supply voltage AC 110V-250V, output voltage 50V-250V, fine workmanship, long-term use without rust. 2. Adjustable current: The controller adopts a new type of bidirectional high-power thyristor, with a maximum adjustable current of 25A, long life, easy installation and very convenient use. 3. Speed regulation function: Ultra-low voltage DC motor speed regulator, with speed regulation function. This product is suitable for self-recovery fuse, which will automatically disconnect when the current is too large, and the fuse will automatically recover after cooling. 4. Multi-function: connect this product in series with lamps or circuits, and turn the potentiometer screw to adjust light and shade, speed, voltage and temperature. It is suitable for electric furnace, water heater temperature adjustment, light adjustment, small motor speed adjustment, electric soldering iron thermostat. 5. Applicable scene: This device can be connected in series with lamps or household appliances, and is suitable for electric stoves, lamps, small motors, electric irons and other equipment. Descriptions: Input power supply voltage AC 110V-250V, output voltage 50V-250V, fine workmanship, long-term use without rust. This device can be connected in series with lamps or household appliances, and is suitable for electric stoves, lamps, small motors, electric irons and other equipment. Specification: Material: plastic, metal Size: approx. 5.3 x 4.7 x 2.8 cm Input Voltage: 220V Maximum Power: 2000W Adjustable Voltage: 50-220V AC Package Included: 1 pc *Voltage Regulator Note: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.