How many and what brand of par38 bulbs would you recommend to me for a 24"x20"x8" frag tank? I want to lower the powerconsumption on that tank while still keeping par up.
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2 would work but will not reach the entire 20" width, i would do 3 or 4
each will cover a 12 x 12 area ONLY - LED's don't do spread
this will give you a nice choice of placement = high PAR directly under and lowering as you move away
i would get evils 60* 14 K
How many and what brand of par38 bulbs would you recommend to me for a 24"x20"x8" frag tank? I want to lower the powerconsumption on that tank while still keeping par up.
Have you considered doing a DIY fixture? At that size tank it would be better to use a heatsink and then spread the LEDs out and get the whole unit covered with light and make the most of it so nothing goes into the dark corners.
a 12" heatsink with 70 or 80 degree lenses and a 12 LED kit will give you better coverage. But for a frag tank / grow out tank I would like to see more LEDs on it, closer to 24 LEDs. As your light demands increase you can add more LEDs.
I have debated building my own led light, but I currently don't have the time to build one properly.
I debated the orphek pendent for a while as well. i came to the conclusion that for $850 a pop i would buy two and put them on my 75. My frag tank shouldn't have prettier lights than my DT. Right?
if you were to DIY it.$594.50
If you have 15 minutes you can definitely tackle it.
[video=youtube;IOQBIlwBiic]http://www.youtube.com/watch?v=IOQBIlwBiic[/video]
Now going from the PAR bulbs to an orphek is a huge jump.
60LED based fixture you are looking for 400wMH performance.
Using Reef Spectrum Cree LEDs we priced it out at
if you were to DIY it.
For the cost of two orpheks and some of your time you could put two of these and put them over your DT and have enough money leftover from the savings to do your frag tank for free.
He makes a strong argument.
The orphek I was referring to is the par lamp with 12 LEDs. It claims to have similar par and spread as a 150w halide.
I forgot they came out with those bulbs. When I read orphek, I instantly thought of the fixture. Those bulbs are very bright and I like how the diodes were designed for reefkeeping.
The Orphek is a nice bulb. Interesting how they put two uv diodes in there. At that price you could get two rapid bulbs. It just depends on what type of look you are going for: the orphek will be a crisp blue white and the rapid will be much warmer.
Sometimes that goes hand in hand. For instance, certain corals esp. acros can lose color under cool whites.Since this is a frag tank i am not worried much about looks, but results and quality.