8000 Joules Surge Protection safeguards RV electronics from damaging power spikes. Delivers reliable power conversion and surge protection for worry-free RV adventures Overload Protection with 15A circuit breaker automatically cuts power and features a reset button Integrated circuit analyzer checks power source wiring for faults before connecting your RV. Portable design with LED indicator for easy monitoring of power connection status 90° Right Angle Design: reduces stress on cord and the power inlet. Built with 100% pure copper wiring and UV-resistant casing for superior outdoor durability CircleCord 30 Amp to 15 Amp 110 Volt RV Surge Protector Adapter Cord, 8000 Joules, NEMA 5-15P Male to L5-30R 90° Right Angle Twist Lock Female, Overload Protection, RV Circuit Analyzer, ETL Listed