Built-In GFCI Plug & Lighted Indicator for Safety: This 12 gauge extension cord features a built-in Ground Fault Circuit Interrupter (GFCI) with a lighted end that glows when poweredoffering a clear visual signal of active electricity. Ideal for use in potentially hazardous work zones, it helps prevent shock risks and increases overall job site safety. Extension Cord Heavy Duty Performance: Built to endure demanding environments, this gfci outlet outdoor model is made with 12/3 SJTW wire and a rugged vinyl jacket that resists moisture, abrasions, and sunlight. Dependable for contractors, HVAC technicians, and outdoor use with space heaters, saws, grinders, and power tools.