Cadillac Headlight harnesses

2 and 4 Relay Differences

The main differences between the 2 and 4 relay harness is safety and wig-wag function.

The 2 relay harness uses one relay for both low beams and one relay for both high beams so if the low beam relay or circuit breaker was to fail you would lose both low beams, same would hold true for the high beams.

The 4 relay harness has a relay and circuit breaker for each low beam and each high beam so if a relay or circuit breaker was to fail you would only lose that one light.

The 4 relay harness also allows the use of a wig-wag unit.

As a side note the factory headlight circuit uses one circuit breaker for both low and high beams so if it fails you will lose both low and both high beams.

You can use 80-100 watt bulbs with both harness.

2 Relay | $125.00

I make my headlight harness so you can upgrade your bulbs or headlights without running the risk of burning up your factory wiring or headlight switch.

I use 10 gauge SXL wire from the battery to the two 30amp auto reset circuit breakers and to the two 40amp relays. 12 gauge SXL wire runs from the relays to the headlight sockets, wire is run through a flame retardant loom for protection. All connectors are crimped and soldered. All power and ground wire attach to the battery to get the best possible connections.

This will also allow you to keep your low beams on with your high beams.

My harness is a plug and play unit, no holes to drill or wires to cut.

2 relay headlight harness

4 Relay | $175.00

This is the top of the line harness for your car. This harness gives each filament its own circuit. I use 12 gauge SXL wire from the battery to each 20amp circuit breakers, and from each 40amp relay to the headlight sockets. Wire is run inside a flame retardant loom for protection. All connections are crimped and soldered. All power and ground wires attach to the battery to get the best possible connections.

This harness will also allow you to keep your low beams on with your high beams.

My harness is a plug and play unit, no holes to drill or wires to cut.

4 relay headlight harness

Maxi auto reset circuit breakers I $3:50

These are the same maxi style auto reset  circuit breakers I use in my harness. Available in 10, 20, 30 and 40 amp.

 

Maxi auto reset circuit breakers


Relay 4 pin

This the same 4 pin relay I use in my harness.

 

$4.50