driving light wiring

150 watts each = 300watts
300/12= 25 amps
2.5mm sq is good for about 30 amps but to be safe I would go to 4mm sq to allow for any voltage drop you may get or run a seperate 2.5 mmsq to each one. A 32 amp relay will do the trick.

Hi Tim. The usual method is to wire your driving lights directly to your battery via a
relay inter-connected to your headlamp high beam switch so that your driving lights
come on when your highbeam headlights are switched on. Also fit a suitable toggle switch mounted in your dashboard and wired into the circuit between the
relay and headlamp switch so the driving lights can independently be switched off when your headlamp high beam is on.
It is a requirement by state motor vehicle registration departments that driving lights do not run independent of your normal headlights, that is why you must connect them through a relay to your high beam switch.
The relay and toggle switch can be obtained at any auto electrician outlet as well as the wiring cable. Usually cable rated at 15amps will do the trick. I'm not sure
what the current draw on your driving lights are, but if they draw more then 15 amps then go to a higher rate cable. The cable run from the relay to the high beam circuit need not be heavy duty as this is only required to activate the relay.
If you have a maual on your vehicle there may be an option in the wiring diagram showing how driving lights are wired up.
Hope this helps. Cheers.Have Wheels Will Travel

I think that the 4000s come with 100 w bulbs, not 150s. It is not a good idea to use bigger bulbs as there is a real heat issue and it can lead to reflector degradation.

Many people will tell you to use 6mm cable, but have a look at the guage of the cable coming out of the light. It is nowhere near 6mm, much closer to 2-3mm.

I, also, have rallye 4000 after too many experiments with lesser supposedly "just as good" products.

enjoy

I am in the market to buy a set of spoties and nearly fell over when i saw the price tag on most i looked at.

Are they worth the $600-700 each ?

What about the 240 lightforce at a $1000 each, ouch !

How much night driving do people do to justify these expences ?

Kev.

Kev,

Horses for courses or as someone else used minis v tight jeans.

We have to travel in the wee early hours or late ones to get to town etc.

The main thing we have found is that a pencil and a spread beam on the left is the best setup. As we need the most light avail. we have 2 sets. 1 set in the bullbar and 1 set above, we used 2nd hand set of Oscars and newish Narvas all up @$100. Use locktight and make sure all is tight. Keep in mind that if you get a smashed R4000 you'd be spewin.

As said above consider how much use they'll actually get or how good they make you feel.

Kev, you shouldnt pay anymore than $200 each for Ralley4000s.
and the Hella 160 shouldnt be overlooked at around $130 a PAIR.

Tim, Hella make a wireing kit im sure it would be worthwile. not sure on cost tho.
Just make sure you have over 12 volts at the light when its going.

I agree Tuco, Id want at least 13.5 volts too.
But I have a new work truck (WesternStar) with 4000s on it and upon checking am only geting 10.3 volts at the lights. They work ok just realy dull.
Wouldnt you think that when you pay close to $200 000 for a truck theyd be able to put heavy enough wires in them?
My last truck I had the driving lights power taken from the alternator which, depending on where your batterys are can make a difference too.