New to DIY LED
Fixtures, but here is what I am thinking... please let me know if I am on the wrong track, or if anyone sees any problem with the plan.
I need to light a 12 gallon long reef tank, that is 36" wide (91cm). It is presenting a bit of a challenge. I want a fixture that is dimmable, and controllable, but I don't feel like spending $1400 on 2 radions to run at 10% intensity
I am thinking a 36" wide heat sink, predilled for 18 LEDs:
Drilled/tapped 1.4" x 36" Aluminum Heatsink - Rapid LED
The plan will then be to add:
6 royal blue 3W Crees, 60 degree optics
6 blue 3W Crees, 60 degree optics
6 soft white 5W Crees, 80 degree optics.
My thinking on the optics is since the LEDs will be single file, I will want greater spread on the whites so I don't end up with a spot light effect. I tried to illustrate my thinking in the diagram below - since the layout will be blue, blue, white, the whites need to spread more to mix evenly in the tank.
I then plan to drive each of the 3 colors individually, using a Mean Well ELN 60-27P for each string.
Mean Well ELN-60-27P dimmable driver - Rapid LED
To the drivers, I plan to hook this nifty Arduino controller I found Typhon LED Controller
which will allow for timer settings and intensity settings with sunrise/sunset for each color of LED
I figure the small heat sink will be a mess with the wiring, but I got the idea from Ziggy to use some stock aluminum C channel to kind of shield the whole fixture and hide the wiring. I can paint it black.
For the stand, I plan to use 20mm square t slot aluminum, as shown in the diagram below. I can then attach the heat sink via the T slots to the stand, and set it over the tank. I can't imagine the whole fixture will weigh more then a few pounds, so I would think 20mm t slot would be more than enough to carry the load.
I am looking for feedback on the plan:
Will it be enough light for softies and LPS
Since I have never wired LEDs before, do I have the wiring concept correct in the diagram below?
Do I have enough height on the stand (fixture would set roughly 10cm above waterline)?
Are there any flaws that anyone sees with this plan?
If you've read this far, thanks for suffering through! I would love your feedback.