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Discussion Starter · #1 ·
Got my Hella 500 driving lights today and the hook up seems fairly easy but there switch instructions really suck! It shows just two wires hooked up to the switch and it doesn't say what wire goes where and the switch has three prongs, not two. I know the switch needs to be grounded to light up so I'm guessing one is for a ground . The switch has one long prong in the center and one on the right and left had sides of the switch. On the back of the switch starting with the top post it say's "Earth", Center post say's "Load" and there is a mark like this by the bottom post \ and it Say's "Supply".
I know one needs to go to ground and one goes to the relay and one needs to be taped into the wire leading to the headlight that runs the high beam. The problem I'm having is that I don't know what post I use on the switch for what wire
Any ideas? Mike
 

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Official TN User
96 Taco 4x4 Ext cab
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92 Posts
Earth means the ground from your frame, Load means the 12v current going to your lights from the switch, and supply means the 12v power supply from the battery to the switch. I wired KCs on my friends jeep and a lot of car audio equipment. Amplifier switches are the same.
 

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GO PATRIOTS!
2007 Tundra
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8,675 Posts
Mike-in-WV said:
I know one needs to go to ground and one goes to the relay and one needs to be taped into the wire leading to the headlight that runs the high beam. The problem I'm having is that I don't know what post I use on the switch for what wire
Any ideas? Mike
MIke if you wire it that way it will only run when the high beams are on and the switch is on. Onwhim is right about the terminal locations. The line that goes to the high beams needs to be tied into another line (ie dimmer, fuse box or cigarette line for example). That line energizes the switch thus letting power (when the switch is on) from the realy under your hood power up the lights, thus they would only work when the high beams are on.....which may be legally correct, but almost useless.

As for a ground there are a few grounding points under your dash already....and you have to ground the lights also I believe.
 
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