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Old 10-15-2013, 11:59 AM   #1
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Under counter lighting?

Looking to replace my fluorescent under counter 12 volt DC lighting fixtures with LEDs. Am I correct that 110 AC LEDs are actually 12 volt DC and all I have to do is eliminate the transformer to use them?
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Old 10-15-2013, 12:27 PM   #2
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Looking to replace my fluorescent under counter 12 volt DC lighting fixtures with LEDs. Am I correct that 110 AC LEDs are actually 12 volt DC and all I have to do is eliminate the transformer to use them?
Depends. You can get 110 AC LEDs. My 12 volt DC LED decor lighting is connected directly into the DC system. A dimmer can be used with many, but it would be good to check that.
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Old 10-15-2013, 12:28 PM   #3
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Um, why not just buy the 12v strips to start with?

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Old 10-16-2013, 04:12 PM   #4
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Maybe I'm misreading something here but direct replacement "tube" Leds are available to replace your existing 12VDC flourescents.
These LED flour. tubes will operate from 12VDC so all you have to do is strip out the inverter in the existing fixture and install the new 'tubes' and they will run from nominal 12VDC

Unfortunately the site doesn't show the voltage except on one page , 8 - 30VDC,
so to be sure contact them.

There are other sellers. I am going to do the same thing the next time my Thin Lites give trouble.

Revolution Fluorescent LED Replacement Bulbs
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Old 10-16-2013, 05:03 PM   #5
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I've also replaced the 12v fluorescent bulbs with the led tubes sold by Marinebeam. The ones I did were in my v-berth and the difference is amazing. You rip out all the guts and just use the switch. The fixture looks the same afterward, except puts out MUCH more light. They offer them in 3 brightness. Seems like it was Natural, Cool, and Warm. Not in that order.
I've also used the "LED tape" for undercounter lighting. It's 12v and you just cut it to length. Just Google "LED tape" and you'll see lots available. Some as cheap as $10 for a 15ft strip.
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Old 10-16-2013, 07:24 PM   #6
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I rebuilt my flourecents. Here are a few pictures.
Fryedaze - Lighting upgrade
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Old 10-16-2013, 08:18 PM   #7
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I have been contemplating the same in my salon as the fluorescent lights are all out except for a few. I guess I can just tie the two wires into my existing wiring in order for to use the original switch correct? I'm very mechanical but a mental midget when it comes to electrical. thanks.
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Old 10-16-2013, 08:54 PM   #8
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OK.......YOU GUYS . . . . . you hooked me!!

I just ordered a 15' length of LED tape off Ebay. Came to $7 and change with shipping. My engine room lighting, on the 12 volt side sucks. SO has got to be a 150% improvement. I'll be letting you know if it's not!!
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Old 10-16-2013, 10:46 PM   #9
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Don't keep it to yourself, Edelweis. Send us that eBay link.
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Old 10-16-2013, 10:58 PM   #10
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led

We have installed over 200' of led tape strip in our homes in the last year, I am getting ready to install the same in the valance that runs the perimeter in the salon of the Ocean Alexander in a week or so. In the engine room use a cool white for brilliant light, in the salon use the warm whites for that gentle glow.

Led wholesalers carries all the stuff including dimmers and we but a lot of gear through them. The tape is also available in waterproof for extra $.

You can get most led tape lighting in 12vdc

HOLLYWOOD


www.LEDwholesalers.com - 16 Feet Double Density Flexible Light Strip with 600xSMD3528 LED 12 Volt
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Old 10-16-2013, 11:02 PM   #11
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Here you go Al. This is for 5 meter 300 LED tape, not the replacement bulbs.

Yes you have to bid on it. There are actually lots of sellers with about the same product.

5M 3528 SMD LED Strip Light 300Leds DC12V Cool White Car Party Flexible Light | eBay

If it's junk, it's cheap enough that it's no loss.

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Old 10-17-2013, 09:05 AM   #12
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You hooked me too. For $8 at Amazon I bought 16' / 5m LED tape. Here's the link.

I went with Amazon because they're a known entity, and the prices seem pretty close all over. If this stuff works as advertised, it opens up all kinds of possibilities.

Anyone use this stuff in the engine room? I had one LED bulb fail in there, and I'm wondering if it was the heat. Probably didn't help that I left it on underway for about 6 hours.
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Old 10-17-2013, 11:38 AM   #13
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You hooked me too. For $8 at Amazon I bought 16' / 5m LED tape. Here's the link.

I went with Amazon because they're a known entity, and the prices seem pretty close all over. If this stuff works as advertised, it opens up all kinds of possibilities.

Anyone use this stuff in the engine room? I had one LED bulb fail in there, and I'm wondering if it was the heat. Probably didn't help that I left it on underway for about 6 hours.
I put five 23.5" LED rigid bars in our ER. One failed at 18 months. They had a two year warrenty and they replaced it no questions asks. I routinely forget to turn mine off and they have stayed on while cruising. Heat may be the issue.

WLF series High Power LED Waterproof Light Bar Fixture | Aluminum Light Bar Fixtures | Rigid LED Light Bars | LED Light Strips & Bars | Super Bright LEDs
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Old 10-17-2013, 11:57 AM   #14
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Quote:
Originally Posted by fryedaze View Post
I put five 23.5" LED rigid bars in our ER. One failed at 18 months. They had a two year warrenty and they replaced it no questions asks. I routinely forget to turn mine off and they have stayed on while cruising. Heat may be the issue.

WLF series High Power LED Waterproof Light Bar Fixture | Aluminum Light Bar Fixtures | Rigid LED Light Bars | LED Light Strips & Bars | Super Bright LEDs
Dave: In the engine room did you go with the cool or warm color?
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Old 10-17-2013, 12:25 PM   #15
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Anyone use this stuff in the engine room? I had one LED bulb fail in there, and I'm wondering if it was the heat. Probably didn't help that I left it on underway for about 6 hours.

I wondered about that environment too? They sell moisture proof and non-moisture proof and that could be an issue in the engine/bilge area as well as heat. Also the tape comes in different colors and LED densities, more or less LED's per inch. I went with the 300 LED, but they also have 500 and 600 (per 5 meters, about 16.25 feet in length).
I'm going to convert some 18" twin tube florescent lights, so I'm think multiple lengths of LED tape may give more uniform light over one or two lengths. I have one of the old lights with a dead ballast here at home, so will experiment with different options. If this works out, I will order some of the red LED tape and make the main cabin lights switchable red or white???
(Give me a soldering station and I am happy for hours!!)
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Old 10-17-2013, 12:40 PM   #16
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Dave: In the engine room did you go with the cool or warm color?
I used the cool white color. Its nice and bright down there.
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Old 10-17-2013, 12:48 PM   #17
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(Give me a soldering station and I am happy for hours!!)
Bet you used to build Heathkits! :-)
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Old 10-17-2013, 03:18 PM   #18
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Bet you used to build Heathkits! :-)
Ha! Close but no, I never built one. As a student, I did have an old Heathkit HT40 that someone else built, we used it as an RF field generator for experiments. No I learned my soldering skills in college labs and later working in the field. It still comes in handy from time-to-time, but more so as a pleasure boat owner. lol

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Old 10-18-2013, 09:03 AM   #19
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FYI about the link I posted from Amazon: I got a very nice reply saying they've been shipped - from China - and will be here in about 12 days.

I wasn't in a hurry, and I probably would have ordered anyway, but I figured I'd mention this to anyone else who wanted them sooner than that.

12 days from China is actually pretty good. Anyone else remember when "allow 6 to 8 weeks for shipping" was the norm?
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Old 10-18-2013, 11:02 AM   #20
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Early this year installed about 30 feet of led strips in the engine room. Very bright but they are now failing at rapid rate. there are two possibilities relating to these failures. The first suspect is heat due to the way I close to mount them, not trusting the double face tape I installed the strips in 1/2" acrylic tubs which made a great looking system but does not allow much heat dissipation. the second cause could be that on boat you are
running the leds at 13.3 to 14 volts which is more then 10% above the leds rating.
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