Shop Nilight LED Light Bar 15 FT Wiring Harness Kit – 2 Leads 16AWG 12V On Off Switch Power Relay Blade Fuse for Off Road Lights LED Work Light in high quality, support 2 Years Warranty Black. Equipped with circuit protection power relay-safety protection and conversion circuit Blade fuse protects the circuit when overcurrent or short circuit occurs. With four sets of light output connectors, the wiring harness can hook up four LED lights within 180W at the same time.