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Hella 700FF Help

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Old 12-26-2010, 09:45 PM
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Question Hella 700FF Help

I just got some used Hella 700FF's, which came with a toggle switch and about 10 feet of wire. I have been searching all over for a way to hook these things up with no luck. I just want to flip the switch and my lights come on, and I dont want to deal with relays and junk. If anyone can help, that would be awesome


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Old 12-26-2010, 09:48 PM
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Whats the wattage of the bulbs?
Whats the length of your wire run?
Whats the amperage rating of your switch?
Old 12-26-2010, 09:55 PM
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100 watts per light
And I have no Idea about the other 2.
I was thinking about hooking the 2 up to the battery, but then I have no idea how to hook it to the switch.
Old 12-26-2010, 10:05 PM
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you'll need a relay, and im pretty sure 700ffs are 55watts
Old 12-26-2010, 10:14 PM
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The guy I bought them from put 100w bulbs in.

can't it be like wiring a house?
Old 12-26-2010, 10:15 PM
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Wiring diagram:

http://www.classictruckshop.com/club...h/foglites.htm

Sorry it's late I meant to post:

Get a 5 prong relay, should have 2 terminals labeled "87" run 1 positive from each terminal to each light.

Last edited by Turbo X_J; 12-26-2010 at 11:20 PM. Reason: it's late
Old 12-26-2010, 10:26 PM
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then you'd better get a really good switch if you're gonna run all that ampherage through it
Old 12-26-2010, 10:39 PM
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You're gonna need a relay, too much amperage being drawn by the 100watt bulbs to just use a switch. Wiring a relay into the ckt isn't hard at all. Heres a little diagram that I just drew up that might help.


I'm running a pair of 700FFs on my Dak, they came originally with 55watters in it but I swapped mine out for 100 watters, which is probably what he did also.

Edit: Turbo X_J beat me to the punch while I was drawing up my diagram lol.
Old 12-26-2010, 10:40 PM
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Originally Posted by Turbo X_J
Wiring diagram:

http://www.classictruckshop.com/club...h/foglites.htm

note: run one positive from tap 87 to one light, run the other positive from tap 87a to the other light.
Where do I find the relay? is it already exsistant on the jeep? I know nothing about electronics in the xj...

that diagram is awesome though!
Old 12-26-2010, 10:46 PM
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Any standard relay you can pick up from an auto parts store that will handle the amps that those lights will draw will work, splurge and get a relay that has a mounting tab built into it or on it so you can more easily/solidly mount it somewhere.
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