Adding driving lights to E-450 (UPDATE)

klutchdust wrote:
My coach is a 2008 E-450 Interested in adding driving lights , recommendations or experiences wanted.

I would recommend fixing the headlight wiring harness first, the OEM wiring harness uses no relays and rather light ga wire (typically 18ga) that winds all around the vehicle adding lots of resistance.

This resistance creates a huge voltage drop which ends up with about 10V-11V at the headlight bulbs with the engine running..

That is about 25% less voltage to the bulbs which results in more than 25% less light.

You can build your own headlight relay kit with Bosch 12V 30A relays and heavy ga wire.. I used 10 ga wire and mounted my relays near the battery. You will need two relays, a fuse or breaker, 12 ga or 10 ga wire, two headlight replacement pigtails and a weather proof box to house the relays and a bunch of wire loom to make every thing neat and pretty. About $20 worth of materials and very bright headlights..

If you don't feel like building your own relay kit, there are a few premade ones you can buy for around $40-$50..

Just do a search for headlight relay kits..