Underwater LED
04-06-2016 | 06:28 PM
#11
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Joined: Sep 2006
Posts: 1,359
Likes: 180
From: Indianapolis, IN/ Punta Gorda, FL
I made these with parts from eBay, the LED's are about 1" square x 1/8" thick, 36 Volt x 100W each. I adapted them on a round mounting plate that attaches to a round heat sink as they generate allot of heat. Silicone heat transfer grease "MUST" be used under the LED's to transfer the heat generated to the heat sink. They're capped off with a water tight magnifying lens that magnify's the available light even more and spreads out the light pattern. Power is from a "BOOST CONVERTER", it takes your 12V DC and boost's it to 36V DC. The boost converter has adjustable current and amperage pods so you have to dial in the volts to 32-36V and amps to around 3A with a DVM. A little machining is needed to make it all fit together, but well worth it when done.
04-07-2016 | 04:58 AM
#12
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Joined: Oct 2015
Posts: 489
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From: Hamilton, Ohio
Sorry, but I don't have anymore pics. I didn't plan on posting for these LED's, I just happen to have them available before the install so I took only those couple of pics. Here are the drawings I made during the build for a reference, you can use these as a guide to get the concept and details of the build, hope it helps.
Detailed wiring diagram:
Detailed wiring diagram:
Last edited by 90profx; 04-07-2016 at 05:10 AM.
04-19-2016 | 02:47 AM
#14
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Joined: Oct 2015
Posts: 489
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From: Hamilton, Ohio
The 100 Watt LED's get very "HOT", that's why the big heat sink. Under swim platform will not allow much cooling and raises the possibility of someone touching the unit. Their mainly for use at anchor (underwater) or while underway at night providing some air circulation for cooling.
