Low voltage lighting systems must be listed by an approved testing agency as an entire system or assembled from individual components that are listed.
Wiring porch light fixture.
Support the fixture with a wire coat hanger.
Several types of remodeling boxes can do the job but we recommend a 2 x 3 in metal remodeling box that s 2 1 2 in deep for fixtures up to about 6 lbs.
These connect to the black and white wires in the electrical box with the provided larger wire nuts.
Splice the white lead to white wire and black to black.
Wire the switch install a bulb and test.
Some wiring may vary however this is the most common wiring scenario for a 120 volt light fixture.
Electrical wiring at the light fixture is typically made by connecting together the wires of the same color which are commonly black white and the bare ground wire or green ground wire.
Low voltage light fixtures luminaires must be no closer than 5 feet away from the outside walls of pools spas or hot tubs.
Caulk around the base.
However it s likely that the light fixture was mounted in the middle of a stud cavity which makes mounting a box that can support the weight of the fixture more difficult.
Exterior light fixtures do not require gfci protection.