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Old 10-20-2017, 04:42 PM   #1
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incandescent to rv to led

I am usually a big fan of the Search function but am just not getting the info I (think I) need....

I bought a couple light fixtures that are for home/residential use with the intent of using in my trailer. I LOVE these fixtures. Thought I'd just use the regular RV lights in the fixtures. But I'd prefer to convert them to LED. Is there an adapter base that converts from residential incandescent to RV LED?

Am I making this more complicated than it needs to be?



Cheers
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Old 10-20-2017, 04:55 PM   #2
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I don't know of a direct adapter, but if it is a residential fixture, you can easily rewire it to use 12 volt LED bulbs. Look at http://www.led4rv.com/ for inspiration. They have a wide range of stuff that you could easily adapt.

A picture of your fixture inside and out would help solve this...

My thinking would be to replace the residential socket with something more suited for RV bulbs, then putting an LED in that socket.
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Old 10-20-2017, 04:57 PM   #3
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Hi

There are a number of different "residential" light bulbs. Are talking about a 40/60/100W "Edison Medium" base?

These days, the normal approach for RV's is to wire things up with 12V LED's. A residential system is set up for 120V bulbs. Running 120V lighting off of 12V via an inverter is not a real good idea.

So - what sort of fixture are we talking about?

Bob
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Old 10-20-2017, 05:19 PM   #4
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Of course I am at work without the details. But they have edison screw type bases, E26 - with 60W tubular bulbs. And I'm fully committed to rewiring as needed to use. Just not sure where to start.

They're vanity style lights from HD (discontinued - so I bought all 4 that they had left)

http://www.homedepot.com/p/Hampton-B...5142/204816695
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Old 10-20-2017, 05:26 PM   #5
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Ummm, yes you are making it very complicated.

If I recall correctly DC current requires stranded wire and AC solid core wiring due to voltage drop. HOWEVER, since you are converting to LED lamps this may not poise a problem BUT 120 volt LED's will not run off 12 volt. You would need to re wire to automotive standard bases for this to work.

Cheers
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Old 10-20-2017, 05:33 PM   #6
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Originally Posted by funkill View Post
Of course I am at work without the details. But they have edison screw type bases, E26 - with 60W tubular bulbs. And I'm fully committed to rewiring as needed to use. Just not sure where to start.

They're vanity style lights from HD (discontinued - so I bought all 4 that they had left)

http://www.homedepot.com/p/Hampton-B...5142/204816695
Hi

Since you are after an odd shape as well as a non standard base (for 12V bulbs) this will become a bit of a science project. The simple approach is probably to hand wire / hand mount LED strips into the fixtures. You will probably need three or four sided strips to get a reasonable "look" from the fixtures.

Bob
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Old 10-20-2017, 05:35 PM   #7
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Ummm, yes you are making it very complicated.

If I recall correctly DC current requires stranded wire and AC solid core wiring due to voltage drop. HOWEVER, since you are converting to LED lamps this may not poise a problem BUT 120 volt LED's will not run off 12 volt. You would need to re wire to automotive standard bases for this to work.

Cheers
Tony
Ok - that's what I'll do! I would want to use them on battery power/12v.

Now to select the wire gauge and bases.....

Thank you.
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Old 10-20-2017, 05:36 PM   #8
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Hi

Since you are after an odd shape as well as a non standard base (for 12V bulbs) this will become a bit of a science project. The simple approach is probably to hand wire / hand mount LED strips into the fixtures. You will probably need three or four sided strips to get a reasonable "look" from the fixtures.

Bob
Was thinking about wrapping a rod with the led strips....
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Old 10-20-2017, 05:37 PM   #9
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Ok - that's what I'll do! I would want to use them on battery power/12v.

Now to select the wire gauge and bases.....

Thank you.
Hi

The type of wire is not the issue. Finding an appropriately sized / shaped / color temperature LED array is.

Bob
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Old 10-20-2017, 05:47 PM   #10
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Hi

The type of wire is not the issue. Finding an appropriately sized / shaped / color temperature LED array is.

Bob
Ok - I'll study this more over the weekend. Hoping I can just remove the edison base and wire in the LED array then.... after selecting size/shape/color... and then tearing it apart to improve selection.
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Old 10-20-2017, 05:58 PM   #11
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Is this what you are looking for? http://www.m4products.com/xw-9w-5630...ung-5630-leds/

Bill
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Old 10-20-2017, 06:12 PM   #12
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Is this what you are looking for? http://www.m4products.com/xw-9w-5630...ung-5630-leds/

Bill
Wow - is it? I think it might work. Though I'm mechanically inclined, I am VERY electrically challenged. I don't know why I can't work this out.....
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Old 10-20-2017, 07:41 PM   #13
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Hi

There are a number of different "residential" light bulbs. Are talking about a 40/60/100W "Edison Medium" base?

These days, the normal approach for RV's is to wire things up with 12V LED's. A residential system is set up for 120V bulbs. Running 120V lighting off of 12V via an inverter is not a real good idea.

So - what sort of fixture are we talking about?

Bob


The OP was talking about refitting the fixture for 12V LED bulbs, but all of my lights run through an inverter. It isnít such a bad idea in my view...
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Old 10-21-2017, 08:53 AM   #14
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The OP was talking about refitting the fixture for 12V LED bulbs, but all of my lights run through an inverter. It isnít such a bad idea in my view...
Hi

A typical LED light pulls a couple of watts. Run off of 12V 100% of the battery energy goes straight to the LED.

Turn on your inverter and it likely pulls a few amps doing nothing at all. The circuits inside need to power up. Is that 2A or 4A? Who knows, it varies between manufacturers and models. It also varies a bit between samples of the same model.

Net result is that you are putting twenty to forty watts into running the inverter and three or four watts into running the LED off of the inverter.

Yes it's a bit more complicated than this. A 120V LED bulb has a power converter in it. They rarely are very efficient. This or that 12V LED array may or may not be well matched to 12V. Lots of grubby details.

Bob
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