Multi Functional Wall Power Outlet Socket with 2 USB Port 13A for Home Office 110/ Item Type: Socket Material: ABS+Brass Color: White Size: Approx. 8.6x8.6cm / 3.4x3.4in Weight: Approx.175g/6.2oz Rated Current: 13A Working Environment: -20-40℃ Application: Decoration of homes, offices, schools, etc. How e Before starting work, isolate the mains power supply, remove the fuse in the fuse box or turn off the circuit breaker in the user unit, pass the cable through the entrance hole/connector, and connect it according to the instructions. If a ground loop connection is required, please use the ground terminal block in the rear box. After the correct installation is completed, the power supply must be reconnected.