re: Replacing Pool Light - Need Help

There should be a rather simple gfci but about 8 to 10 feet away from the pool which is in an accessible box a few inches above ground. Assuming your underwater power supply at the main is still functioning, you only need to run the new light fixture’s wire to the box in the yard. If that’s the setup, it isn’t difficult to replace the entire fixture yourself even without partially draining the pool.

But before you jump into the job, consult with someone and have them test the power supply converter and the line from there to the junction box. If there’s a problem upstream from the fixture, you need an electrician.