LED on a 30" width

[Gizmoh]

Thank you all very much for the responses. I like what I am seeing. If I was to get 4 Sols and 2x24" mounting rails i could then hang the rails along the width instead of the length and achieve the design that was posted earlier and still be able to adjust them to ensure proper coverage. What sort of clearance do these units need above the heat sink for airflow as I mentioned I only have about a foot and I think 8" is ideal above water level. So with the unit being almost three inches that gives me only an inch of clearance if this is enough I'm off to the races if not, I can fiddle around a little more to get a couple more inches I think.

[Aquattro]

Originally Posted by Gizmoh

What sort of clearance do these units need above the heat sink for airflow as I mentioned I only have about a foot and I think 8" is ideal above water level.

Mine are fitted into my canopy, which gives them about an inch of clearance. I have large holes in the top of the canopy that let heat out, although so far, there's no heat coming out.

[tang daddy]

I have 2 ai sols on a 75g which is 48x18x18, some might say it's enough but I feel the coverage front to back is about 14" so I will wait to see what multichip led is out on the market next year so that I can add 2 more fixtures on.

I think in a year or so multichip led will revolutionize the market as the blend in colours will blend much better being all on one led chip.

[Gizmoh]

Thanks again to all for the replies! Tang daddy, are you running the 40 or 70 degree optics, I am guessing the 40? The Vegas look very nice, I would love some more info from AI on those ... But that is a waiting game. The sunbrite is an interesting choice but at the price point I just don't know, needing 2 puts me about 400 over 4 Sols... Decisions decisions.

Keep the info flowing! I'm intrigued that I haven't got a single argument in favour of the 10x54w T5. I think for obvious reasons, as blinks points out the replacement cost would be steep, plus evaporation, plus electricity...

And I want to thank fishytime for sending me down this road with his comment in my initial planning thread! Made some excellent points in one sentence!

[Gizmoh]

Is anyone aware if the ai unit can be half on/off the end of the mounting rail. If so I could get away with a 12" rail, if I go the route.

[Aquattro]

Originally Posted by Gizmoh

Is anyone aware if the ai unit can be half on/off the end of the mounting rail. If so I could get away with a 12" rail, if I go the route.

Doubt it, they mount via a small screw on each end.