Leave the device hanging free so it doesn’t make contact with anything and test it to be sure the wiring is correct. Flip the switch on and turn the power back on at the breaker box to test the light circuit. Use a receptacle analyzer to test a receptacle for proper wiring. If there’s a problem with the wiring turn the power off again and correct the problem.
A safety wire included in a household electrical circuit to carry current directly to ground in case of a short. The grounding wire in household electrical cable is usually bare copper, but it may also be found covered with green plastic insulation.
If the existing receptacle or switch is connected through the holes in the back, push a jewelers screwdriver or similarly shaped tool into the slot next to each hole to release the clamp pressure and pull the wire free.
A ceiling fixture may be installed one of two ways, it may have screws that hold the base to the mounting strap on the outlet box to support the weight, or a threaded rod and coupler may be used to suspend the fixture. To install a fixture with screws, locate the base and make sure there are two holes that line up with the screw holes in the mounting strap. Also check that the screws to be used thread freely into the holes before holding the light up to begin installation.