LEDs for my 20 gal

[adamizy]

I need a led fixture for my 20 gal. Let me know what you got. Nothing over 100w (preferably dimmable). I already made up my mind to buy LEDs so don't bother offering t5 cause I have one already lol
This is what I'm working with

Thanks




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[Aqua Pro Builder]

4 pcs MR16 with a dimmable controller
60 degree optics

Total 24W

$172


What's the dimension of you tank? I will give you an estimated PAR after I know the dimension

 

[ryangrieder]

Par38 bulb

 

[Aqua Pro Builder]

Par38 bulb

The clearance is very tight and that most do not dim

 

[adamizy]

I was looking at aloha tropics affordable led fixtures. What u guys think about that he has 60 and 90W models


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[adamizy]

4 pcs MR16 with a dimmable controller
60 degree optics

Total 24W

$172


What's the dimension of you tank? I will give you an estimated PAR after I know the dimension

I think 24 watts is too little


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[lfsmarineguy]

Wattage is meaningless with LEDs for a lot of reasons. I doubt a screw in is going to fit under there unless you feel like cutting holes in the shelf above (which would help with ventilation anyway). I'm not going to comment on other vendors LEDs either way but from the looks of the space you have to work with it's going to really limit the options.

I'm partial to Orphek LEDs and I have 2 of their PR-25s (PAR-38) units that are almost equivalent to a 150w halide at only 24w each and they're dimmable, over a 20gal holding tank. I'll post pics in a few if you want to see what they look like. The tank is just for some livestock that is either being held for customers or is for sale so there's no rockscape and most of the corals are within a few inches of the sand, color and growth are very impressive.

 

[adamizy]

thanks for the info. yeah i would like some pics and prices if can.

 

[lfsmarineguy]

First pic is a regular auto settings shot of the tank and the second is white balanced which is a closer representation of the actual color (in reality it is a little more blue but the second pic represents the color you get with livestock under the units). Even if I added a 3rd unit the projected monthly cost of running these at max on a regular schedule would still be under $4/month in NY.

The tank has also been running for about 2 months now and I haven't cleaned the glass yet. You can see the algae now but it's what most tanks I've worked with develop in less than a week. The optics definitely help with that.

 

[adamizy]

How many do u reccomend for a 20gal 24in long? How much a unit?


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[Aqua Pro Builder]

What's the dimension of your tank?

I am going measure the par value base on your tank's length and height so that you know whether it's too little or too much and determine how many bulbs or how much power you will need.

 

[adamizy]

What's the dimension of your tank?

I am going measure the par value base on your tank's length and height so that you know whether it's too little or too much and determine how many bulbs or how much power you will need.

24"long 12"width 17" height


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[Aqua Pro Builder]

With 4 pcs of the 12,000K MR16 bulbs in a straight line with 6" in between.
par data is as follow
The lights are set at 18"(which is very close to your set up because of the space the MR 16 bulbs occupying below the shelve) above the sensor. Actual numbers will likely to be higher due to the height of your sand bed.


The distribution along the straight line is (data is approximated every 3 inches apart)
(Left side)85...122...158...158...170(CENTER)...158...158...122...85(Right Side)

The bulbs are very lite you can mount them with staple gun or the wire mount sold in HD

You can add or subtract the amount of bulb for you own application.

 

[Aqua Pro Builder]

Looks something is going on with the RB or the site. I have been receiving repeated questions by multiple individuals and looks they did not receive the my replies, so let me show you the links to the pic again:
http://www.flickr.com/photos/51751091@N08/5805805342/in/set-72157626054771511