Adding LED pods to trailer - Diesel Forum - TheDieselStop.com
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post #1 of 10 (permalink) Old 03-07-2019, 05:35 PM Thread Starter
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Adding LED pods to trailer

I have a car-hauler trailer and I would like to add an LED pod to each rear corner for backing up at night. My trailer is setup with a 4-flat at the rear and it was my initial thought to wire the pods to that and plug in when needed. But then I worry about corrosion when not plugged in and protected. So perhaps I wire in a waterproof switch as well and leave it plugged in?

Or should I forget the 4-flat and just wire it to the running lights and hide a waterproof switch somewhere?

Anyone have any luck with certain waterproof switches?
Something like this?



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post #2 of 10 (permalink) Old 03-10-2019, 11:23 AM
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Why wouldn't you connect them to the trailer reverse lights circuit, and let the truck switch them on & off as needed? You said it has a 4-flat at the rear, but surely it has a 7-round at the front, right?



I like these because they're rugged, bright, inexpensive, & compact:
https://www.ebay.com/itm/392253182123


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post #3 of 10 (permalink) Old 03-10-2019, 04:31 PM
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You can't get power thru a 4-pin other than the running light or brake/turn-signal. There will be a blunt cut wire for reverse lights just forward of the rear bumper. You could wire a waterproof connector to that or like Steve suggested convert to a 7-pin. I would just go the 7-pin route. Some Ford trucks have a trailer connector with both 40pin and 7-pin receptacles. It should plug in where your 4-pin does. You can find those at a wrecking yard for a few bucks, or even visit your dealer and buy a new one.

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post #4 of 10 (permalink) Old 03-11-2019, 08:44 AM Thread Starter
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On another forum, I just found out that there is a reverse light circuit in a 7-round! So that is indeed the way to go! That will be a fun little project sometime when the weather warms a bit.

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post #5 of 10 (permalink) Old 03-14-2019, 10:24 PM
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You could have found that by clicking the diagram I posted above.


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post #6 of 10 (permalink) Old 03-15-2019, 09:19 AM Thread Starter
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Agreed Steve, I just happened to get that same information on the other site a day before you posted here.

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post #7 of 10 (permalink) Old 03-19-2019, 09:45 AM
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I added a SPDT switch into that circuit on some of my trailers. The lamps at back of trailer are connected to the reverse light feed from truck or flip the switch and they are connected to the battery charge/power supply feed so I can use them as load lights for getting ramps out or down on the various trailers.

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post #8 of 10 (permalink) Old 03-19-2019, 10:05 AM
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Quote:
Originally Posted by Steve83 View Post
Why wouldn't you connect them to the trailer reverse lights circuit, and let the truck switch them on & off as needed? You said it has a 4-flat at the rear, but surely it has a 7-round at the front, right?



I like these because they're rugged, bright, inexpensive, & compact:
https://www.ebay.com/itm/392253182123
Apologies if I seem to be hijacking this thread....

How are these for fog lamps up front?

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post #9 of 10 (permalink) Old 03-19-2019, 10:35 PM
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Quote:
Originally Posted by panhead george View Post
How are these for fog lamps up front?
Pretty good.


(phone app link)



(phone app link)



(phone app link)


I'm also putting a set on my golf cart that I use around the house. And I put some on a friend's duck boat, and the back of the duallie in my avatar.


(phone app link)


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Last edited by Steve83; 03-19-2019 at 10:37 PM.
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post #10 of 10 (permalink) Old Yesterday, 10:25 AM Thread Starter
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They say they are a spot light, but they seem to spread out the light pretty well.

2017 F-350 CCSB 6.7L
[old]2002 7.3L PSD, 6spd, 4x4 Off-Road, Super Cab, Short Bed, ARE Topper, SCMT Autometer gauges, Tymar, 4" SS aero-turbine exhaust, & WW.

'73 Bronco 351 SEFI, 35's & Locked!
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