ATI Powermodule Hybrid Club

Can someone make a ATI led light recommendation for a 90g 48 X 24 X 18 tank? going to be mostly sps, not sure if the 36' or the 48 4 bulb makes more sense...thanks

Mark
 
Can someone make a ATI led light recommendation for a 90g 48 X 24 X 18 tank? going to be mostly sps, not sure if the 36' or the 48 4 bulb makes more sense...thanks

Mark

48" 4 bulb. That way you can go to a 60"tank down the road if you ever wanted and 48" bulbs perform better than 36" bulbs.
 
Though it isn't a power module, I am EXTREMELY happy with how the 4x54 power module looks in combination with my 2x76w buildmyled.com strips. I know what you mean about brightness and clarity, and it is hard to describe. Its almost like the tank is a movie, and I switched from 480 to 1020. More contrast, more color, more fluorescence, and VERY bright. Despite how bright and sharp the LED and T5 combo looks, it isn't harsh at all.

I'm not sure it'd come across well in photos either, but I'll try my best to get some later this week.
 
Hey Rod,
I was wondering what your light schedule is.
I've been thinking about selling my soul among other things (j/k) and when I move out west here pretty soon setting up a new, larger tank with one of these fixtures.
I know the T5's can dim but I figure I would use the LEDs the most & only use the T5 bulbs for the midday boost for maybe 4 or 5 hours a day, hoping to keep the T5 bulb changes down to the minimum, hopefully get 15 months (or more)out of them...I'm hoping...hoping the LEDs are fairly capable on their own, etc.
What are you finding, doing & enjoying the most?
 
I'm officially jealous of all hybrid club members. .. There, I got that off my chest. I feel better now. My wife said I can get one when my car is paid off in september... ugh! That's like 6 months out. What a sexy fixture. WORTH EVERY PENNY IMHO NOW. I so dislike my doctor buddy at the moment. Pics and videos do no justice to these fixtures. .. it's like seeing Shakira in a video then seeing her in person at the forum shops... WOW!
 
Light of the decade. Period.

You have gotta hand it to ATI for stepping up to the plate and taking the lead on hybrid. Big risk for them in risking it on a hybrid when the popular perception was that LED was everything to everyone.

I remember reading about the hybrid while I was jumping on the LED bandwagon with a high end German made LED fitting and thinking they were just trying to protect their T5 market but I have since learned through some expensive experience, they were on the money.....
 
It was rumored a while back that ATI would also be selling the LED modules that should be bolt on ready for those of us with existing ATI fixtures. I believe it was stated that we would just have to remove a bulb or 2 and the reflectors, then the leds could be cleanly retrofitted in.

Just a rumor, or I may be losing it? Anyone else hear about this? I've gone the route of attaching reefbrites, but would love a cleaner look.

Hope I didn't take the thread off track. Your light is beautiful and I look forward to hearing more about its performance. Someday I will hope to join the ATI hybrid club!
 
After researching mine for a similar tank, I believe the 4 bulb 48' would be a ton of light, especially because the 48 inch model has a third LED fixture.

Mark
 
I was thinking about running 2 of the 36" fixtures over my 72" tank just to get the dimmable T5s. Can you point me to a discussion about why 36" bulbs don't perform as well as other lengths?

If dimming the T5's is what you want then get 2 36" fixtures otherwise the 60" model will cover a 72" tank marvelously.

It seems the 39w bulbs are just a in between length that isn't quite as good performance wise as the 24" & 48". Just a theory but the 36" bulbs may run a little hotter. I really wouldn't worry about it, its only us number chasers.
 
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If dimming the T5's is what you want then get 2 36" fixtures otherwise the 60" model will cover a 72" tank marvelously.

Just a theory but the 36" bulbs may run a little hotter. I really wouldn't worry about it, its only us number chasers.

Would you like to share the basis of your theory?
 
Would you like to share the basis of your theory?

Less heat transfer & displacement. Cooling & tube lengths, short tubes are cooled faster, long tubes disperse heat more along the center of he tubes, maybe the in between length suffers from physical limitations because of the length? Its just my theory and I can't confirm it.
 
Less heat transfer & displacement. Cooling & tube lengths, short tubes are cooled faster, long tubes disperse heat more along the center of he tubes, maybe the in between length suffers from physical limitations because of the length? Its just my theory and I can't confirm it.

Yep^^^ grim did a experiment that concluded that the 36"t5 performed less effectively then the 24"and 48" version.
 
thanks so much for posting your observations! read through but didn't see posted (or probably overlooked). What were the dimensions of your tank with the par readings?

I have a 10 bulb powermodule over a 72 x 36 x 24"T tank now and while I haven't measured the par, it looks "dim" to me along the front and far back (i.e. doesn't fully cover the 36" width). I'm wondering if the 8 x 80 + 4 LED clusters is any bigger then the 10 x 80 powermodule. The shimmer and spectral maps look very promising.

Thanks in advance.
 
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