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post #1 of 9 Old 10-28-2009, 06:15 PM Thread Starter
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Power Inverter

This maybe a silly question but here goes..can you wire a 12 volt inverter into your trailer plug? I want to add a Christmas Wreath to my spare and would like it to only light when the headlights come on. Since I would not use the inverter all the time, I would like it in the back and of course I thought that would be the easiest power connection. I would be using a 500w or under so it would be one that could plug into the cigarette lighter.

Any ideas?
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post #2 of 9 Old 10-28-2009, 06:30 PM
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how many watts is the wreath at 500w it is 41 amps the formula is watts divided by volts to give you amps hope this helps and i got it right

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post #3 of 9 Old 10-28-2009, 06:34 PM
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Yeah I what he said ^^^^



On a serious note, you want to run a pretty big wire pushing 500 watts. I run a 400W near the tailgate off a 2AWG cable. I'm pretty sure if you hooked up a 500W inverter to your trailer plug, you'd pop a fuse or melt a wire.

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post #4 of 9 Old 10-28-2009, 06:37 PM
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minimum size wire would be a #8 is good for 40 amps #6 should be sufficient good for 50 amps or 720 watts
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post #5 of 9 Old 10-29-2009, 06:13 AM
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I honestly thing it would be ok, as long as you ONLY run the wreath off of it.
the inverter should only pull power based off of its load and the wreath shouldnt be much load.

I had some DC xmas lights awhile back, might be better off to see if you can find some of those tho
they were made to run off of a couple of C batteries so I wired 4 sets in series to make em work off of 12V

I just google 12v christmas lights and came up with a bunch of hits
Heres a set from Ace Hardware - $11
http://www.acehardwaresuperstore.com...78.html?ref=42


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post #6 of 9 Old 10-29-2009, 07:24 AM
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minimum size wire would be a #8 is good for 40 amps #6 should be sufficient good for 50 amps or 720 watts
Oh... then I guess I'm overkill

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post #7 of 9 Old 10-29-2009, 09:48 AM Thread Starter
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Thanks everybody...after all that was discussed and the problems it would be I think I would be better going with a 12 volt wreath (thanks venom, had no idea...) or just a battery operated one...

Thanks again!!!
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post #8 of 9 Old 10-29-2009, 10:21 AM
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I've got a small inverter with lighter plug we used when traveling to power my laptop.

You could use one of those and run an extension cord to the rear and sneak out the plug at the jack compartment.

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post #9 of 9 Old 11-04-2009, 01:15 PM
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If you replace the incadescent bulbs with something like an LED string, you wouldn't need the inverter at all. But, yeah, you can run a _small_ (very small!) inverter off of the main trailer wiring. Remember that that power is running a long ways down a little wire.

FWIW, the guage of the wire used for a given load is also determined by the length of the run - the longer the length, the heavier the gauge needs to be to reduce resistance in the wire.

!c
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