Features:100% brand new and high quality.Save energy sources efficientlyStabilize the voltage Balance the current sourceProtect devicesSmart， sleek design with LED lights to indicate operationProlong the life of electrical devicesEasy to use-no maintenanceSaving electricity means saving money saving money means earing money The electricity saving device saves and reduces energy by stabilizing the voltage which in turn results in reductions in peak power demand and less waste of low efficient power. Specifications:Rated voltage: 90-250VRated frequency: 50Hz-60HzUseful load: 18000WPlug type: UKDimensions: 112*57mm(L*W)Material: PlasticColor: WhitePackage include:1 * Energy Saving Box