VCT AR10000 Heavy Duty 10,000 Watt Voltage Regulator / Stabilzer with Built-in Voltage Transformer for AC 110V / 220V / 240V 10,000 watts maximum capacity voltage regulator / stabilizer with built-in voltage transformer for worldwide use. Converts 110/120V to 220/240V OR converts 220/240V to 110/120V. Compatible with 50Hz/60Hz. Voltage stabilizer good for countries with unstable voltage supply. This stabilizer can regulate big range fluctuating voltage into general voltage output. Input Voltage AC 75V-130V or 180V-260V ~ Output Voltage: AC 110V+-4% or AC220V+-4%. 10,000 watts maximum capacity, Fuse protected with built-in thermal Fuse - protects damage to your valuable equipment from voltage fluctuation.