Features: 1.Easy to use. Simple to connect. 2.Balance the current source. Stabilizes the voltage supply. Prevents electrical overheating. Extends the life of electrical appliances. 3.Improve device efficiency and protect device. 4.This smart electrical box constantly improves your power flow by capturing and straightening the current of otherwise wasted energy. In this way, your electricity consumption will be lower. 5.Multi-protection of real materials, a good power saver brings you comprehensive security protection. Fireproof shell. Note: The actual color may be slightly different from the picture due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. Description: 1.Frequency: 50-60HZ. 2. Effective load: 28000w. 3.Operating voltage: 90-250V. 4.Shell Material: Flame retardant ABS material. 5. Scope of use: household and commercial. 6.Size: 98MM*58MM*29MM. includes: 1 mini power saver.