How Do You Wire Spotlights With A Relay?
Spotlights draw a lot of amperage, which can be too much for a simple toggle switch to control. Wiring a relay in the circuit for the spotlights allows them to draw the full amount of power they need, and allows controlling them with a small low power switch. Disconnect the negative cable at the vehicle battery. Mount the relay using a self tapping screw in a protected location near the battery. Install a solderless ring connector on one lead of the inline fuse holder and attach to the bolt on the positive battery terminal clamp. Using a piece of 14 gauge primary wire and butt connectors, extend the other lead of the inline fuse holder as necessary to reach the relay. Use a solderless female spade connector and attach the lead from the inline fuse holder to pin 87 on the relay. Connect a lead from pin 87a to pin 86 using a short piece of 14 gauge primary wire with female solderless spade connectors. Run a 14 gauge wire from pin 85 to the spotlights. Install a toggle switch in a conveni
