A Weather Resistant (WR), Tamper Resistant (TR) GFCI is required for all outdoor electrical applications. The GFCI MUST have the letters WR and TR on the outlet to pass electrical inspection by any town or city inspector. GFCI (Ground Fault Circuit Interrupter) protection is required by electrical code for swimming pool light circuits, especially those operating above 15 volts, to protect against electric shock. A GFCI continuously monitors current flow and will instantly shut off power if it detects any imbalance, which could indicate electricity is going through an unintended path, such as a person. This protection can come from a GFCI breaker in the electrical panel or a GFCI outlet that powers the light. It’s crucial to periodically test and maintain these safety devices
