Shop Nilight RV Power Adapter Cord 30 Amp to 15 Amp Pure Copper Heavy Duty 10 Gauge Wire ETL Listed TT-30P to 5-15R 30M/15F Weatherproof Cord for RV Camper Caravan Van Trailer in high quality, support 2 Years Warranty. Our RV power adapter cord has been tested at an ETL laboratory and found to meet all applicable Standards for Safety published by relevant NRTLs.