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Old 02-09-2012, 04:26 PM   #11
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What would be a good K rating for a fresh water tank?? I would go for more of a white light. I am thinking one of these in my tank to try out. Why not
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Old 02-09-2012, 04:42 PM   #12
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10W High Powered LED Wall Flood Wash Light Lamp Bulb Waterproof Floodlight | eBay

This is what I saw that looked good, if you dont know the IP65 rating here is the info

6 means-Totally protected against dust
5 means- Protected against low pressure jets if water from all directions - limited ingress permitted
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Old 02-09-2012, 08:39 PM   #13
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Originally Posted by ClamSnorkler
Thanks for the info, I'm in process of a 125g reef tank build. I have truelumen coral pro lights in my hex now. I love them but total cost was $450 to light a 24" spot. Please keep us updated on yours
I'll keep posting every month or so on the progress, I have a birdsnest SPS coral in there that's been growing great. I may invest in a par meter so I can really see how much light they produce.
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Old 02-09-2012, 08:50 PM   #14
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This is awesome Tom, Is there anything else covering the tank or just the diffuser? Do you have a ton of evaporation issues? Also would you mind sharing what brand you bought?
Thanks, I just have the diffuser (aka egg crate, bought at Home Depot for $12) covering the tank. It's purely there just do I can place the lights on top. Once I build my DIY canopy for the LED floodlights will probably take it off. I usually keep my tanks topless because I like to get maximum gas exchange. This tank (72G + 30G sump) does evaporate over a gallon per day, but I don't mind filling up the ATO (auto top off) every few days. I just see that as the cost of getting better gas exchange.

By brand are you referring to the LEDs? If so, they seem to be brand-less! If you search "LED floodlight" on eBay you will see hundreds of these gray or black painted metal floodlights, they all appear to be the same "brand". On my DT (display tank) I found some 20W 12000K lights, on my sump I have a 10W 6500K light that has been promoting the growth of my macro algae. All round I am very pleased and surprised with the results, I'm sure an $800 LED light fixture is superior but this seems to do the job for far cheaper, how will do in the long run? All looks good so far.
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Old 02-09-2012, 08:56 PM   #15
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Originally Posted by didysis
10W High Powered LED Wall Flood Wash Light Lamp Bulb Waterproof Floodlight | eBay

This is what I saw that looked good, if you dont know the IP65 rating here is the info

6 means-Totally protected against dust
5 means- Protected against low pressure jets if water from all directions - limited ingress permitted
This is the exact 10W 6500K LED floodlight that I have in my sump, this is what I would recommend for freshwater (or SW sump installation). I would say in FW a 10W is probably bright enough for up to 18" (height) tanks (max) for larger tanks you may want to up it to 20W+.

With a 10W I would recommend one per foot of your tanks length.
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Old 02-09-2012, 08:57 PM   #16
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If anybody else tries these floodlights please post your photos and experiences to this thread so we can see your outcomes.
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Old 02-09-2012, 11:24 PM   #17
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They are the right color spectrum and seem to be powerful enough. Interesting! I just built a canopy and bought an LED light strip for my 10g ($160). Wondering now if I could've got away with a small one of these lol.

How's the light spread? I'm wondering if they could be modified to spread out light further.
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Old 02-09-2012, 11:29 PM   #18
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So 125 gallons means lots and lots of light, I know its odd I still want a larger tank LOL, I might have to get one or two and try them.

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This is the exact 10W 6500K LED floodlight that I have in my sump, this is what I would recommend for freshwater (or SW sump installation). I would say in FW a 10W is probably bright enough for up to 18" (height) tanks (max) for larger tanks you may want to up it to 20W+.

With a 10W I would recommend one per foot of your tanks length.
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Old 02-10-2012, 08:21 AM   #19
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Originally Posted by scottayy
They are the right color spectrum and seem to be powerful enough. Interesting! I just built a canopy and bought an LED light strip for my 10g ($160). Wondering now if I could've got away with a small one of these lol.

How's the light spread? I'm wondering if they could be modified to spread out light further.
The light spread is pretty good, the 25W is much better than the 10W in that regards as it has a larger reflector. You can unscrew them and take the LED out of the case, although I haven't attempted it, I'm sure it's possible to modify them.
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Old 02-10-2012, 08:26 AM   #20
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Originally Posted by didysis
So 125 gallons means lots and lots of light, I know its odd I still want a larger tank LOL, I might have to get one or two and try them.
For a 125 I would get 3, possibly 4 25W fixtures. As I mentioned above the 10W fixture doesn't have as much spread as the 25W, so you would need quite a few if you wanted the 10s on a 6' tank.

Just by judging that I have 2 over my 4' tank and would like to add 1 more (125 being 6').
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