Welcome to My Store! Ready to sentGood qualityBest price Purchase Notes 1. All products is shipping from oversea, goods will arrive your home in 1-2 week,mostly in 8days. 2. Good quality,already group buying price 3. If you have any problem and query please feel free to contact us to deal with,we will be happy to chat with you. Follow us, promotion and new arrival every day in our shop Many thanks for your visiting, very grateful Features: AC 0V-220V continuously adjustable, zero hysteresis, zero latency, superior heat dissipation. Can be used in many places, such as: furnace, hot water heater tune, dimming lamps, small motor speed, electric iron thermostat and so on, so as to achieve dimming, thermostats, voltage regulating effect. Using the new two-way high-power thyristor, current up to 40A, a good solution to the problem of over-current electric wire in the case of cooling the resistance is too small to cause. For electric power is less than 2000W of large electrical appliances , so the general home appliances or small factories are enough to use. Gently rotate knob cap, can adjust flexibly, do not need to add any element, the product is practical, convenient. Specifications: Input voltage: AC 220V Output voltage: AC 0-220V Maximum power: 4000W(Note that this is short-time limiting power ) Size:100 * 85 * 53mm/ 3.94* 3.35 * 2.09 inch Plug: US plug Weight: 450g Usage: Voltage controller and desk lamp, electrical appliances are connected in series in the circuit (namely, disconnect any one of the neutral wire or live wire of the desk lamp, electrical appliances, pick up on the voltage controller terminal ), turn the knob cap, can adjust the light, speed, temperature,voltage regulating; simple and convenient operation. Package Included: 1 xVariable Voltage Controller Note: 1. Voltage can be adjusted only under load conditions. 2. Partial line of the module back side is treated with copper. The customer of the