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  #1  
Old 01-02-2012, 07:42 AM
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Originally Posted by ScubaSteve View Post
My bad. Got lost in all those numbers before. I like the low profile look. Are the LEDs recessed or just mounted on the heat sink surface?

Also, who's the manufacturer of the 10W LEDs?
They are screwed onto the heat sink surface. My friend is going to add a 2" aluminum "shield" around the entire unit to block off the light so someone looking at the tank or walking by won't see the LEDs.

(more numbers to get lost in) Each emitter has a 100 degree spread which is perfect. 13 emitters per 5'8" heatsink and it's 12" wide, 2" tall. It's literally only 3.5" from the water surface, with good shimmer, full spread and no "spot lighting" or "disco ball effect". The two fans blow air up on the right side but most of the cooling is my conduction/convection. With all the lights on, there were still sections of the heatsinks that were cool to the touch and at most it was barely warm in parts. My friend will be adding pieces of aluminum on the open ends of the rectangular tubes which will make the fans more effective.

I can literally pick up the lighting unit with one or two fingers.
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Old 01-02-2012, 08:23 AM
SeaHorse_Fanatic SeaHorse_Fanatic is offline
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Just running the blues at half power and I've noticed one advantage of these LEDs is that even though none of the white lights have been on for at least 4.5 hours, many of my corals are still fully open. They usually closed up under the old moonlights within an hour or two of the MH going off. I'm liking this development
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Old 01-02-2012, 09:26 PM
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Hi Anthony

The lights look great. You are definitely on the right track.

What a win win.

Better Par at half the juice.

I look forward to coming over for a real good look.

Tom R
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Old 01-02-2012, 10:56 PM
Reefgoat Reefgoat is offline
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It's looking really nice. What manufacturer makes those 10w leds?
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Old 01-02-2012, 11:18 PM
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Sounds like a kick arse unit!! I would love to have a par meter to test out mine to.
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  #6  
Old 01-03-2012, 12:20 AM
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WOWZERS!!! Check this out, 100W LED! They also have 50W LED, but the 100W got my attention.
http://www.ledssuperbright.com/30w-l...ower-led-p-226
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Old 01-03-2012, 12:28 AM
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Very cool may i ask what the cost was on the unit and where on line did u find 10 watt units or will your guy build me one too!
Thanks
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Old 01-03-2012, 01:18 AM
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Quote:
Originally Posted by Reefie View Post
WOWZERS!!! Check this out, 100W LED! They also have 50W LED, but the 100W got my attention.
http://www.ledssuperbright.com/30w-l...ower-led-p-226

These arrays have actually been around for a while now, but I think the 100 watters are a bit overkill for our application and they need a very good heatsink with fan. I would choose multiple 10 watt arrays over any other due to the 9-12 volt DC operating voltage. Makes it much easier to drive them and while they still need a decent heatsink, you might be able to get away with one fan for multiple units of these LEDs. The 100s need some weird voltage like 36 VDC to drive them and power supplies/drivers in that range are less common. Plus, with the 10 watters, your colour mixture can be better customized. Price is better as well & if one 10 watter burns out, it's not as much of a kick in the a$$ to replace. Make a mistake with the 100 & burn it out, it's a few $$s more.
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Last edited by mike31154; 01-03-2012 at 01:20 AM.
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