Change pool-light colors with flick of a switch June 20, 2001 Now you can have your underwater swimming pool light in color and automated color lighting for your backyard spa.

This step is non-negotiable to avoid serious injury or electrical shock." Check the power at the switch and the pool light ...

Q. We have a 3-year-old in-ground pool/spa combination. The light in the spa is a 61/2 inches in diameter, with 120 volts, and it was installed on a professionally wired GFCI-protected circuit.