Reese Towpower Professional 6-Pin Round to 4-Flat Flex Plug-In Adapter with LED Tester

Easily adapt 6-Pin connector to 4-Flat connector with FLEX. LED (light emitting diode) tester continuously checks your lighting electrical circuits to ensure they are in sync and active. FLEX cable alleviates strain on vehicle and trailer terminals by allowing for greater range of motion. Encapsulated with premium plastic for longevity and durability in extreme environments. Easy-pull two-finger ergonomic grips for unplugging.