Features: Stable Voltage: The voltage regulator stabilizes the voltage prevents voltage instability achieves stable and balanced electricity consumption and thus prolongs the service life of electrical appliances. Multiple Protection: The energy-saving device has overheating protection. When the continuous working temperature is too high it will automatically cut off the power supply and resume use after cooling. Energy Saving:Electronic control capacitors balance current comprehensively improve the power of electrical products and avoid ineffective waste. Work Indicator Light: The energy-saving device has an indicator light which is clear and visible during the energy-saving process making it easy to operate. After-sales Service: If you have any problem please contact us immediately we will help you solve it as soon as possible. Specifications: Rated Voltage: 90V-250V Working Temperature: -60-75 Rated Frequency: 50Hz-60Hz Effective Carrying Capacity: 15000W-18000 Notes: 1. Due to different monitors and lighting effects the actual color may be slightly different from the image. 2. Due to manual measurement please allow 1-3cm deviation. includes: 1 * Voltage Regulator or 2 * Voltage Regulator or 4 * Voltage Regulator "