Waterproof Pop Up Outlet Installation Instructions
Product Installation Instructions:
Easy to Install: No professional help required.
1. Make sure you have enough space below your bench top (353mm/13.89inches from the top surface, 85mm/3.346 inches in diameter)
2. Drill a hole with a diameter of 85mm/3.346inches in the desired installation surface.
3. Fit the unit in the hole and twist the locking ring to tighten.
4. Connect the power cord to a power source.pls make sure the cable under straightly before using.
More information please see the below link：
https://www.hkram.com/desk-power-outlet/pop-up-usb-outlet/waterproof-pop-up-outlet.html