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Wiring amperage help requested

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Old Apr 6, 2023 | 04:02 PM
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Default Wiring amperage help requested

I thought I had all of my ducks in a row but that is no the case.
I have the following, ready for install: Front lightbar that is nicely hidden in the bumber, back up lights and some bed LED's. To control all of that, I splurged on an auxbeam 6 gang controller. I have watched several youtube videos and have some good ideas. I am thrilled to not have to deal with relays and have a nice clean wiring setup. Hers the gotcha. I just checked on my lightbar and my back up lights. The relays are 40A. My controllers highest amperage fuse is 30A. DOH! Am I stuck with wiring the relays to the gang plate then? I dont see any way around this other than still using the relays and running the control wire to the auxbeam gang. Is that correct? I have not checked my LED's as those will go on later. I assume the amperage of LEDs will be much lower and can go right in to the gang plate.

Last edited by Mike Gascon; Apr 6, 2023 at 04:03 PM. Reason: typos
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Old Apr 6, 2023 | 04:15 PM
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I would start by looking at the individual light components and see what each is rated for current draw. I think a lot of the harnesses and relays are made to handle the largest light set up a company might sell. That said the relay is rated for 40 amps, did they send you a fuse holder and if so what size fuse is in it?
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Old Apr 6, 2023 | 04:26 PM
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Of course! Look at the enclosed fuse! Thank you for the idea! I knew I was overlooking something obvious!
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Old Apr 6, 2023 | 05:07 PM
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The issue is partially solved now. I checked the included fuses on the lights. They are both 30A. I only have one 30A slot on my gang plate. I assume I can't just put a larger Fuse on the gang plate so I will still ise one relay.
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Old Apr 6, 2023 | 05:35 PM
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What are the specs of the front light bar? Also the same for the rear lights. If you know what the current draw of the lights it would help to figure out a solution. That info should be on the box or in the literature.
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Old Apr 7, 2023 | 11:06 AM
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The front light bar is:
https://www.amazon.com/gp/product/B09JW138F9/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1 https://www.amazon.com/gp/product/B09JW138F9/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
I will try to find the specs on the rear lights later.
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Old Apr 7, 2023 | 12:24 PM
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If I'm reading it correctly, your front light bar is rated for 100 watts. The math says you are safe. You could also use a smaller fuse I would think. Maybe 15 or 20 amp. I don't think there is a current in rush like starting an electric motor would cause.
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Old Apr 14, 2023 | 11:41 AM
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That helps a lot! Thank you for that. Hoping to wire up both sets of lights today.
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Old Apr 14, 2023 | 03:03 PM
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Let's see some pictures when you have time.
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Old Apr 23, 2023 | 06:45 PM
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Auxbeam not permanently mounted yet.


I like how the light bar is hidden.
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