LED Recommendation Thread

Anyone heard anything about the long term impact about the lack of UV? A reef friend said that after 2 years SPS can start to fade because they longer have to protect against UV? Anyone else heard anything about this? His point was that you have to supplement with T5?
 
I have never heard that UV is needed in a way I took as definite. Lots of comments like yours. However, even with MH much/most/all of the UV is blocked by glass/quarts filters not sure exactly how this works but you get the idea. Did your friend have problems?
 
Jerrick said:
I have read, read, read, read, about LED and have found so MANY options! one thing that works for one does not for another.......So I know know one will know for sure but just wondering if anyone could give their opinion on this light..

http://www.amazon.com/Aquarium-120W...ght-seaweeds/dp/B0058RXPOS/ref=pd_rhf_p_img_1

I will first try one over a 29 gallon and if I have success will put two over my 65. I have nothing in the 29 so can experiment my 65 has now 2- 150W MH and 2 30W blue Actinic....and all coral types, Softie, LPS, SPS...

Thanks for your suggestions in advance....

INFO on LIGHT http://www.amazon.com/gp/product/images/B0058RXPOS/ref=dp_otherviews_4?ie=UTF8&s=garden&img=4
Click to expand...

I've seen this listed on Ebay as well by the same seller and other sellers with the same light. Their description is very confusing. The listing and initial specs state 3W led's (55 total x 3W = 165) but later in the listing it lists the description as 2W led's (55 total x 2 = 110).
I sent the seller a question regarding this but didn't get an answer but lo and behold I just looked at their latest auction and the 2W description has been removed so I'm still not sure....
 
TheFishMan65 said:
I have never heard that UV is needed in a way I took as definite. Lots of comments like yours. However, even with MH much/most/all of the UV is blocked by glass/quarts filters not sure exactly how this works but you get the idea. Did your friend have problems?
Click to expand...

I will have to check with him to see if it was anecdotal -- I know he personally does not have any LEDs but he does aquarium maintenance.

I understand what you are saying about MH -- the same with T5s I guess. I don't know what to think. Do I need to add T5's into the LEDS?
 
I don't know. I don't think so. IMHO we are rally just coming up on the 2 year mark for LEDs. Yes, they have been out longer, but not many and not very reliable IMHO.
 
TheFishMan65 said:
I don't know. I don't think so. IMHO we are rally just coming up on the 2 year mark for LEDs. Yes, they have been out longer, but not many and not very reliable IMHO.
Click to expand...

Well I will see if I can get more details. I was supposed to see him this afternoon but we missed each other so next week I will ask.
 
I would have to argue that there are reliable LED fixtures such as AI, vertex, acanlighting, pacific sun, reeftech...

Quite a few nowadays that really have some proven track records. But everyone has different opinions, that's just the way it is.
 
I am so stoked to put up these LEDs. I finally have time to sit down and play with the controller. It is fun. They got to get those hanging rails to me! The cool thing is that you don't have to worry about shading or raising and lowering the lights as you do when you change bulbs, you just have to play with the intensity. I am sure someone here has gone from T5s to AI's -- if you did -- what did you start your intensities with?
 
I didn't go from T5, but I started my AI's at 35% at the max. I'm very afraid of how bright things can be! I prefer my corals not fried!
 
A noob question. I'm looking at ELN-60-48D specifications and I see that it says:

Input Current: 1.2A/115Vac 0.7A/230Vac
Click to expand...

On the output side, we have max load of 1.3A x 48V = 62W. On the input you'd think the amps would be much lower. But it goes 1.2A x 115V = 138W. Now, maybe I don't get it right, but it seems to me there are some 76W being consumed by the device itself!? Please let me know what's wrong with my calculations (I know this can't be true, they say 88% efficiency).
 
I'm upgrading to a 55 and am on the fence between LED and a TEK T5ho fixture. Has anyone been using LEDs for more than a year? I've read that they start out great but at about the one year mark the corals usually being to die off.
Also with LEDs the color separation you get really drives me crazy lol! Would it be a good idea to get something like solid cool white PAR38 bulbs and supplement with actinic T5's like you would with MH lights?
 
ggrillo said:
Has anyone been using LEDs for more than a year? I've read that they start out great but at about the one year mark the corals usually being to die off.
Also with LEDs the color separation you get really drives me crazy lol! Would it be a good idea to get something like solid cool white PAR38 bulbs and supplement with actinic T5's like you would with MH lights?
Click to expand...

I'm not sure where you read that, but that is quite innacurrate...

And by color separation do you mean in the shimmer? That does take a little getting used to, but LED's are well worth it IMO!
 
ggrillo said:
I'm upgrading to a 55 and am on the fence between LED and a TEK T5ho fixture. Has anyone been using LEDs for more than a year? I've read that they start out great but at about the one year mark the corals usually being to die off.
Also with LEDs the color separation you get really drives me crazy lol! Would it be a good idea to get something like solid cool white PAR38 bulbs and supplement with actinic T5's like you would with MH lights?
Click to expand...

I would do the reverse if I were to go a combo.

White and pink with T5 and Actinics Blue/Royal Blue with LEDs.
 
Hey guys,

I have a buddy that works at a place that works with High intensity led's. He says they are about 3watts each but i have yet to find out more details on what led's he has. He says if i found out how many i need and what type, he can make me a fixture for my tank for pretty much next to free...

I'm starting to read more about LED's so i'm wondering what setup would you guys recomend for my 29gal standard nano reef? Right now i have softies only but would love to have a fixture thats capable of supporting SPS/clams. I'm only running 72watts of T5 lighting right now. with 1 bulb of 10k, 1 bulb of 12k, 2x 460nm actinics

My main questions:

-how many LED's would i need if they are 3watts each
-whats a good blue/white combo
-what "k" rating should the whites be and should i be lookign at about a 450nm blue?
-how high would i want to mount these lights?
-Should i be looking into optics? if so, how many degrees?

I'm also wondering whats a good place to get heatsinks for the fixture? my friend can make the fixture, but nothing else like the casing or anything. just the LED's and wiring.

and the question above has me wondering. How longs do LED's last before they need to be replaced?


Thanks
Eric
 
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