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Old 02-07-2020, 04:58 PM   #1
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Possible to add dimmer?

I have 4 of these lights installed over my dinette and they are just way too bright. I would like to add a dimmer. I know there have been issues with lights burning out. I have had my MH since April, have been out quite a bit and so far no issues. A friend thought these could not be dimmed as they have electronics that might be there to voltage regulate them as the house batteries lost charge so they would not dim along with the battery, so lowering the voltage to the lights might not work.

The new switch I am looking at has 3 wires and the current one only two but there is a ground wire running (not used for this particular switch) right next to the switch so it would accessible for a splice.

On the other hand maybe I should just leave well enough alone.

All thoughts are welcome.
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Old 02-07-2020, 05:15 PM   #2
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I tried to find product data on your lights to see if they are compatible with a dimmer switch, but I couldn't find any information - sorry. Some LED lights will work with a dimmer and some won't. Hope someone else can find some info for you. I've struck out.
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Old 02-07-2020, 05:27 PM   #3
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Quote:
Originally Posted by tomgrigsby View Post
I tried to find product data on your lights to see if they are compatible with a dimmer switch, but I couldn't find any information - sorry. Some LED lights will work with a dimmer and some won't. Hope someone else can find some info for you. I've struck out.
Actually Most Don't.
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Old 02-07-2020, 06:18 PM   #4
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Probably no dimming. Those COB designs are wide-voltage (like 9-30vdc) and designed to give constant output as long as the input is within the voltage range. Going outside the range is when the chips start burning up.

Personally, I'd put dots on its eyeballs until the problem went away. Try using little squares of tape to see what the effect of dimming them would be, and then color them with a black sharpie. Sharpie erases easily with lacquer thinner or goof-off.

An alternative would be to shade the lens (cover) with a screen.
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Old 02-07-2020, 06:35 PM   #5
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Possible to add dimmer?

I added a dimmer switch to the reading lights over the bed. It worked great until Newmar replaced all of my ceiling lights after 20+ failed. It doesn’t worked with the replacement lights. The light in your photo is the same as my original lights.

Here’s a link to my mod:

https://www.irv2.com/forums/f103/bed...ml#post4256100
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Old 02-07-2020, 06:38 PM   #6
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Quote:
Originally Posted by davidceder View Post
I have 4 of these lights installed over my dinette and they are just way too bright. I would like to add a dimmer. I know there have been issues with lights burning out. I have had my MH since April, have been out quite a bit and so far no issues. A friend thought these could not be dimmed as they have electronics that might be there to voltage regulate them as the house batteries lost charge so they would not dim along with the battery, so lowering the voltage to the lights might not work.

The new switch I am looking at has 3 wires and the current one only two but there is a ground wire running (not used for this particular switch) right next to the switch so it would accessible for a splice.

On the other hand maybe I should just leave well enough alone.

All thoughts are welcome.
Old post - https://www.irv2.com/forums/f103/sti...-428679-3.html

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Old 02-07-2020, 07:00 PM   #7
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HI!

I know this is a Newmar Owners Forum question and I don't currently... and have never owned a Newmar.

But help is help.... Right?

Completely different brand I know...but my previous 2016 Bounder and my current coach both have dimmable led's on all round ceiling lights.

First, probably a long shot... but what kind of switch do you have? Mine has a button that I can press on and press off..... but if I press and hold it dim's down, I press and hold again and it dim's up. No one ever told me and I figured it out after more than a year of ownership. Doubt this helps but its worth a shot.

Second, if my coach has these dimmable round ceiling led's, if you need me to...maybe I could find out what they are and you could order some to replace yours.

Third, I see it says your in Payson... do you ever come down to the Valley because, when some of the lights were burning out prematurely in the Bounder, I ordered a set of replacements from a company in Florida called "Jupiter Lighting." They said before Fleetwood decided to change vendors they made the lights for years and the plugs matched exactly. I have a bunch of these (+20) and if you got one or two from me you could try it in your coach to see if it works.... with a switch that dim's. If yes you could order whatever you need.

Or just search "Jupiter Lighting" and call them yourself and tell them of your problems and maybe they have a solution.

Let me know if I can help.

Good Luck!
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Old 02-07-2020, 07:24 PM   #8
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Originally Posted by davidceder View Post

All thoughts are welcome.
I'll take you at your word, even coming from a non-Newmar owner.

I've successfully used this dimmer switch on LED lights:
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https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

The 3 wire connection looks like this:
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This switch works to dim LED lights by True Pulse Width Modulation. The switch effectively turns the light on and off at a speed that's not detectable by the human eye. As an example, at half intensity, the LED is only on half the time and off half the time, cycling on and off faster than you can see, effectively producing only half the light than if it were on all the time. The voltage applied to the LED remains constant (12v).

Take care,
Stu
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Old 02-07-2020, 07:35 PM   #9
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You have to research the lights you have. LED's must be designed to dim. If not designed to do so, all the dimmers in the world will not work.
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Old 02-08-2020, 02:07 AM   #10
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If they're too bright al the time and you don't see a need for them to ever be that bright again, how about attaching some window tint to the inside of the lens. Try different tint shades until you get the lights the way you want them.
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Old 02-08-2020, 10:17 AM   #11
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A couple of screens will give several levels of masking. Try two bits of window screen cut to the size of the lens. Lay one over the other. "In phase" they will let as much light through as a single layer of screen would. But as you rotate or shift one "out of phase" it blocks more and more light. Find the level you like and fix in place.
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Old 02-08-2020, 10:27 AM   #12
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It might be easier to jut replace the lights with lights of less lumens and/or lower kelvin rating. Contact M4 lighting and they may be able to help you out.
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Old 02-08-2020, 10:30 AM   #13
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Looks like you have six led segments...could try covering up three of them perhaps? I don't believe these type of LEDs are dimable. I know what you mean about them being too bright, great for an operating room, not so nice for ambiance. Some friends have these in their rig, you need sunglasses at night.
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Old 02-08-2020, 11:37 AM   #14
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Originally Posted by txcpl View Post
It might be easier to jut replace the lights with lights of less lumens and/or lower kelvin rating. Contact M4 lighting and they may be able to help you out.
What's a Kelvin rating, and how does it affect brightness?
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