*shopping tips: 1.Shop Products Are Ready Stock; 2.all products in this shop are wholesale prices; 3.full store activity,5-60% off discount; 4.before ordering,receive coupons,enjoy more benefits (enter the shop home page toreceive); 5.Any shopping problems,please contact our coustomer service Power Supply/Rated Voltage: 90V~250V Rated Frequency: 50Hz/60Hz Working Temperature: -60~75 Degree Work Load: 15000W or 18000W Dimensions: Approx. 12 x 7 x 3.5cm Description Save energy sources efficiently * Stabilize the voltage and balance the current source * Stand current waveform protect devices * Smart, sleek design with LED lights to indicate operation * Prolong the life of electrical devices * Easy to use, maintenance free Earth friendly How to Use: Plug the electricity-saver box into any free power cord/socket at home/office. Simple operation, no need maintenance, no need pay attention. Package Includes: 1 x Electricity Saving Box 1 x English User Manual