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| 48watt (eBay) led light wiring question http://mudmotortalk.com/mmt_v2/viewtopic.php?f=8&t=65420 |
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| Author: | Pigglet [ Sun Jan 17, 2016 1:40 pm ] |
| Post subject: | 48watt (eBay) led light wiring question |
Does anyone have any experience wiring these lights up? I'm using 10 gauge wire and wiring them up in series (12total) and the lights are humming. Very annoying sound! They're only supposed to draw about 4 amps each. I tried running just 3 lights and still a humming sound but with only 2 lights wired up it is quiet? Any help is appreciated 
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| Author: | msm8281 [ Sun Jan 17, 2016 4:40 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
Are the wires hot? |
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| Author: | Pigglet [ Sun Jan 17, 2016 5:08 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
Not at all. I'm thinking the battery I'm using is goin to shit. It's a new boat I'm tryin to get setup and threw an old battery in to test everything. I'm gonna get some new batts next week and see if that cures the problem |
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| Author: | 3rd Coast Killer [ Tue Jan 19, 2016 9:49 am ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
I ran tiny little wire. Like 18 ga to all 12 of mine, and no humming. Wires never got hot etc. IDK what to tell you. It's probably not the wire. Either the lights or the battery. |
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| Author: | Pigglet [ Tue Jan 19, 2016 11:22 am ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
I got new batteries and will try them tonight and post results |
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| Author: | Will [ Tue Jan 19, 2016 11:43 am ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
(12) 48 watt lights = 576 total watts/12 volt supply = 48 amps total 10awg is plenty big enough, you can run 145' of that gauge for that load 16awg would be ideal, good for 35' 18awg is fine as long as the total line length is less than 23' (fyi) If it still does it with a fresh battery, it's the lights themselves. |
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| Author: | krazo [ Tue Jan 19, 2016 1:39 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
| Author: | Will [ Tue Jan 19, 2016 2:42 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
| Author: | med [ Tue Jan 19, 2016 3:17 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
Cool info. I'm not a math person myself. I'd just have to give the wiring a blind shot. If it produced fire then I would know to go a different route 
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| Author: | Will [ Tue Jan 19, 2016 3:23 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
Second thought, probably not the battery, most LEDs are good for 9v-36v |
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| Author: | Pigglet [ Tue Jan 19, 2016 4:23 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
3rd coast killer... Is your lights on a 12 or 24 volt system? |
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| Author: | Pigglet [ Tue Jan 19, 2016 6:26 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
They still humm with new batts |
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| Author: | 3rd Coast Killer [ Tue Jan 19, 2016 7:21 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
| Author: | krazo [ Tue Jan 19, 2016 8:18 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
Do you have them on a switch? If so take the switch out and connect straight to the battery and see if that makes any difference. Sent from my iPad using Tapatalk |
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| Author: | Pigglet [ Tue Jan 19, 2016 8:32 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
Ya I tried that. I eliminated the relay and breaker too. I emailed the eBay supplier and they said to wire up each light individually instead of in series. Gotta get more wire tomorrow and try that. |
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| Author: | krazo [ Tue Jan 19, 2016 9:03 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
Well that sucks. I would like to know what the voltage drop was when adding each light while in series. I have run 4 on a 14 foot run of 12awg before with no problem but I didn't check voltage. Sent from my iPad using Tapatalk |
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| Author: | cb5331 [ Tue Jan 19, 2016 9:17 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
Series or parallel? Series wiring would not make much sense. |
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| Author: | krazo [ Tue Jan 19, 2016 10:06 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
Good point CB ... Pigglet you did run + and - wire to each light and wire them red to + black to - right?. And CB just to be clear I wasn't referring to a series circuit just to a series of lights or a row of lights. I know what it looks like but that wasn't what I meant. Sent from my iPad using Tapatalk |
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| Author: | Pigglet [ Wed Jan 20, 2016 5:57 am ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
Ya I ran a 10g power and ground to them. I didn't run 2 wires back to the relay from each light just 2 wires along the deck and spliced in the lights on those 2 wires. That's what I mean by series |
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| Author: | TPerkins [ Wed Jan 20, 2016 6:04 am ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
Could it just be the light. I have a light bar that does the same thing. I've never had any issues, I can only hear it when there is no noise around. Usually it's not even noticeable. Sent from my SM-G900V using Tapatalk |
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| Author: | Pigglet [ Wed Jan 20, 2016 6:39 am ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
It could be. My light bar doesn't do it and my old boat had the 50watt customfitz LEDs and they were quiet |
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| Author: | Pigglet [ Wed Jan 20, 2016 7:00 pm ] |
| Post subject: | Re: 48watt (eBay) led light wiring question |
The lights are finally quiet! I had to put 2 lights on 1 circuit so now I've got 6 sets of wires running up to the deck for lights. Not sure why having 3 on a circuit made them humm but it does. Cheap Chinese lights I guess. Thanks everyone for all your help |
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