Easy to install BelowDeck panels include a 15A circuit breaker switch and pre-wired harness. Panels offer customizable 12V charging and monitoring options., Pre-wired harness included in all panels for easy installation, Illuminated Carling Technologies 15A circuit breaker switch allows the ability to shut off panel preventing parasitic draw, Polycarbonate/ABS panel face is UV-stabilized, flame retardant, and will not corrode, 12V DC only