ITEM NAME:1 to 2 Wiring Harness Relay Fuse Kit 40A 12V for Offroad LED Work Light Bar #gib Store Home Promotion Hot Item Add to Fav.With 12V 40A waterproof relay, 40A fuse with waterproof fuse box;. Power: Relay (12V 40A), fuse (40A), can be used for 72W, 120W, 180W, 240W LED work light bar. Material: pure copper wire, high temperature resistant and corrosion resistant wire for automotive.