To be used with current Khrome Werks trailer hitches. Plug-and-play 56" wiring harness features an isolator module with a fused, separate circuit from battery positive to power the trailer lighting; works through built-in relays and prevents overloading of factory-lighting circuit. 5-pin, die-cast, automotive style connector. Mounts using mounting bracket that bolts directly to the safety chain bracket on current production Khrome Werks trailer hitches. An isolator is a must for '09 and later Harleys pulling trailers with conventional incandescent lighting (higher amperage requirements than trailers with LED lighting). Made in the U.S.A.. AMP Multilock plugs. 15 amp fuse/holder, butt connector and ring terminal.