Silly idea

Cops are busting people with lights on the roof at the moment... Not a good idea.

I once fitted 6 cibie lights to a roof bar of a Hummer. 6x100 watts. The Hummer was used for some promotional work.

Battery on roof, hope it does not leak
Battery isolater between main battery and the one on the roof
Relay x4
Switch in cabin for lights
Cable
Fuses

If you still want to go ahead with the project, run a cable up the "a" pillar and do all the other wiring under the bonnet and forget about the battery on the roof.

WayneAlways Out'N About

you'll get a lot of glare from bonnet with spots up there! Wow, am I cute! The extra long legs are built-in prevention against ducks disease. Great looks and a real goer. Doesnt waddle along like some.

Well,Eric, dunno about all this cop related stuff. But you can't just wack in a battery between your lights and alternator and hope that it will take the load off. If your lights are gonna draw 30-40 amps it will draw it from alternator, if you have battery connected to the circuit it doesn't matter. It will just make matters worse (weight on the roof, leaking, etc.) Since batterieas are heavy, I reccomend that you put it somewhere closer to ground. You still have to use wire able to handle 30-40AMP, no matter if you have battery and where it is positioned. Good solution will be, to install soleniod that will charge your battery only when your lights are off, and when you turh them on soleniod automatically disconnects alternator from your battery/lights circuitry. Down side of it is of course, you'll be able to run lights only until go go juice from the battery is drained. Exapmle - if you wack 200 Ah battery in there, you'll get about 5 hours of your lights if they draw 40 Amps. Then you'll have to switch them off for battery to recharge. Maybe you can use 2 batteries, so one i running lights while other one is charging. But I guess, we are getting in to to many batteries here. Anyway, there are many solutions, it just depends what suits you. Or maybe, has anyone taught about installing twin alternators Ha? Anyway, let me know if you want more details on electrics!

Cheers!!!When I grow up, I want to be PATROL TDI - Dragan's Terrano

TAR SUCKS!!!

Ok buddy, i love a crazy idea like this, Go down to your local supplier of car stereo gear and grab your self some 8 guage power and 8 guage ground wire, some crimp on eye connectors, an inline 8 guage fuse to go at the battery, run both the power and ground wires direct from the battery, up to the rack in some flex conduit and terminate to an anderson plug. Go to the auto elec and grab a high current 12v relay like a battery isolator job, and put this inline on the power cable and control by whatever means you desire. Mount your lights on a removeable rack fitting with the corresponding anderson connector. You will have more than ample current supply with no voltage drop. and will be bulletproof to boot.. Cops might not like it , but i reckon it will look MAP (Mean As P...) Wont cost the earth either ( apart from the lights) CheersJust killin time till easter...............go and play in the dirt, instead of workin in it......

Eric,

Don't listen to the doom and gloom posters...they have their own agenda.

I think it is a great idea. I will go one further. Put all the lights on a hydraulic ram so that the lights lie down when you are driving. Just flick the switch and the light come up into position. (The traffic police in Arizona have some vehicles with ram fitted flashing lights on unmarked cars...I know....I got caught!!!)

I wouldn't bother with an extra battery. Just upgrade your main battery to a really powerful one and maybe the alternator as well.

There are lots of ways to skin a cat.....................:-)

Hope you have them on by LD.

Cheers,Willem
Out on the Gibber

Eric, bearing in mind you will be expected to douse the mean lookers at the time the road train coming the other way does, what will be the point if you have to drive on dip for such a long time before it has passed?

The other option he may have is to drive over the top...... I was warned of that once when a relay locked on.

Whenever I have seen European vehicles with six or so big lights across the roof they have been low wattage and blue tint for some reason, just like trucks here use width or height lights.

I have driven with highmounted lights on tractors and while they may be good for some uses I have never tried them on a road. They can throw up a lot of glare of anything like a bonnet.Regards

JohnR - Not enough of the right travelling, some here..... some over there.......

For the cost of 4 Blitz get 2 HID for the bull bar & no big ampsRegards Bob
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