Features: Experience unparalleled voltage control with our high precisions 4000W Voltage Stabilizers, ensuring your electronic devices are safeguarded against voltage fluctuations. Featuring a robusts designs with efficiency of over 90%, this Stabilizers is equipped with anti Spikes and flows protection, along with absorption for reliable performances. Suitable for homeowners, office workers, and factory technicians who demand consistent voltage levels for the best operation of their electrical appliances. Perfectly suited for a variety of settings, from domestic environments to industrial workshops, this module let air conditioners, refrigerators, , and computers running smoothly. Enhances the longevity and stability of your electrical devices with our convenient and practical voltage Controllers module, a must have accessory for any garden or home workshop enthusiast. Specifications: Material: metal Length: about 85mm Width: about 55mm Height: about 35mm Efficiency: more than 90% Working voltage: 220V Regulating voltage: 10-220V Note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xVoltage Regulator