hey guys im new to ford trucks having always owned chevys but i have a 79 ford f100 long bed 2wd that im wanting to change the headlights over to halogen type bulbs can anyone recomend a good kit for this

 

Are you talking about using halogen sealed beams or the lights with the replaceable H4 bulb?

 

im wanting to change it over to a replaceable bulb style head light

 

Consider: Hella E-Code H4 Headlights - PAIR

And uprade the wiring with dedicated relays sourcing voltage directly from the batteries.

Make your own: How to - Headlight Relays - NastyZ28.com

Or use LMC's $30 headlight relay kit.

 

Looks like a very interesting upgrade to the wiring on our trucks for the headlights.

Not sure I understand how he gained so much extra power just off of setting up a relay though... You can't create power out of thin air.

What would be the point of this besides making the headlights brighter? Would not brighter bulbs also do the exact same thing?

I'm not a wiring genius, so a little explanation may be in order lol.

 

Its' not "extra power" per se. Rather, it's more efficient circuitry.

The OEM headlight circuit consists of multiple connectors plus the headlight switch and is less efficient due to voltage/current loss at each and every point. Second, the headlight switch was never intended to handle the power and its internal circuit breaker could cycle on and off as it heats up and cools.

Passing current through a resistor equals heat... the term "resistor" or resistance can take the form of corrosion, fewer strands of wires, or shared parallel circuitry. If there is electrical demand on one side of a corrosion point but not enough current cannnot pass through, the circuit can heat up or eventually burn up. Think of why fuses blow... it's because the electrical demand has exceeded the fuse's current (ampere) rating or "resistance to failure".

A headlight relay upgrade eliminates the voltage*current load (power in Watts) from the headlight circuit and is inherently more efficient due a physically shorter circuit to the power source (the battery) and the current doesn't have to be passed through connectors, crimps, nor share the current with other branch circuits.

Therefore, the headlight bulbs receive more efficient power (closer to the designed Watt consumption & resulting light output) and as a result are typically brighter than with OEM circuitry.

All the headlight switch would do with a conversion is to use the "headlight on" voltage signal to energize the relay(s) and connect the headlights directly to the battery.

 

That's a great price to bad they don't have the square ones.

 

Great info!

Wish I could give reps from my phone... Just when you think technology has advanced so far...

 

I just ponied up for a pair of these Hellas (Rectangular). I think they can be upgraded with the 'offroad' bulbs and of course improved wiring & relay.

http://www.summitracing.com/parts/hl...7291/overview/