Features: 100% brand new and high quality Connect this device with lamp or home applicance in a series connection, then rotate the knob for dimming, speed, voltage, temperature control. Using a new type of bidirectional high-power thyristor, because the current can reach 2, it is a good solution to the overcurrent problem caused by the electric furnace wire when the resistance is too small when it is cooled. It can easily adjust the output voltage of the mains power supply, and it can be adjusted between 50-220 volts for the use of electrical appliances.Thereby the effect of dimming, temperature and pressure adjustment. It can be used for large-scale electrical appliances with a power consumption of less than 2000 watts. Since the power is large, ordinary household electrical appliances or small factories are sufficient. Applicable Appliance: Such as: electric stove, water heater heat adjustment, lamp dimming, small motor speed adjustment, electric soldering iron temperature adjustment, etc. Package Includes: 1 pc x Voltage Regulator Specifications: Material: Metal , Plastic Input supply voltage: 110V ~ 250V AC Output voltage:50V-250V (Output voltage = Input supply voltage) Maximum output power: 2000W Maximum output current :2 Voltage regulating range:50V-250V AC (Output voltage = Input supply voltage) Operation environment txemperature:-20C-40C Size: Approx. 35x27mm/ 1.38x1.06in note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Please allow slightly measuring deviation due to manual measurement.Thank you About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and well make you feel satisfied.