Tools: Utility knife
Do the wallpapering across the recesses of the ceiling lights. When dry cut out the non-woven material covering the socket with the utility knife.
After unscrewing the light switch and socket covers, you can paper over the exposed fittings. Before starting switch off the electric supply to the room concerned. After the wallpaper has been applied, immediately cut a cross-shaped incision into the non-woven wall covering and clean the switch mechanism to remove any adhesive. Once the non-woven wall covering is dry, use the utility knife to trim to the proper switch dimensions.