From the pictures, they look like sealed beams, and like KC's or copies of KC's. At a guess, each bulb could be anywhere from 50 watts to 150 watts (open one up and read the wattage on the back of the bulb). Plan for the high end; five times 150 is 750 watts, which is 62.5 amps at 12 volts. If this is the case, you are talking about BIG wire, probably at least two circuits and two relays.
Even if the bulbs are smaller than that, assume you may eventually replace them with bulbs of different wattage. Go BIG on wiring,
With that many lights, depending on beam pattern, you may want to aim the outboard lights to the sides. You may even want one aimed to the rear (three circuits? Forward, Sides, Rear?), but it all depends on your intended use.
My own kind of "off road" work is low speed, and often in the dark. I don't need extreme long range lights away from the highway. But I sometimes want light in just about any direction.
For what it's worth, here's a bit of experience: If there is ANY slightest fog, dust or smoke in the air, long range lights mounted at or above windshield level will bounce an amazing (and blinding) amount of light back at you (left spotlight on my International has a 250 watt landing light in it -- AAUGGHH!). Rooftop driving lights are useless unless it's CLEAR in front of you.
Fog lights are most useful mounted about 12 to 16 inches from the ground, which sort of rules them out for tall offroad rigs.
Low speed offroad in these parts often includes sharp switchbacks. Fog pattern lights, mounted on the extended winch bumper, can be very helpful as "cornering" lights, though not much help in fog. They can even be work lights on the sides of a truck.
Lights up on the rollbar are vulnerable to brush. I've busted spotlights mounted at upper windshield corners, even though I had steel deflectors coming pretty far forward over the cab from my bed sideboard frames.
But if I lived in open country without overhead brush, say desert, and I ran at high speed in very clear weather, I'd probably love those mega-candlepower long range lights -- even though I know they are very illegal to use on a public highway, because they can blind oncoming traffic (so let's say we're talking about long private roads in huge ranches...).
Good Luck. Go heavy duty on wiring and relays. You can then run nice small wire into the cab, and use nice small switches to control the relays.
Give youself a choice of how many of those lights you use at a time.
And please, PLEASE, aim them carefully!
Have Fun, My Friend. That's what it's all about. :thumbsup:
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