View Full Version : 36inch UAS with LEDs - LEDGroupBuy.com LEDs

Milad LEDGroupBuy.com
07-15-2012, 02:03 PM
Hey everyone.

Just thought I would post some plans on a ATS we are working on. It will be 36" long with a screen of about 34x11in

Build specs:

LED Lighting
2x Makers LED 6" Heatsinks: http://www.ledgroupbuy.com/makersled-designer-heatsink-kit-professional-grade/
2x 25w 700mA Inventronics Drivers: http://www.ledgroupbuy.com/inventronics-25w-driver-700ma/
20x Deep Red with 60 degree optics: http://www.ledgroupbuy.com/deep-red-660nm/
8x 455nm Royal Blue with 60 degree optics: http://www.ledgroupbuy.com/bridgelux-royal-blue-455nm/

Eco Plus 3 Commerical Air Pump: http://www.aquacave.com/Eco-Plus-3-Commercial-Air-Pump-35W-65Lmin-P1286C1045.aspx
Eco Plus Flexible Air Diffuser 36": http://www.aquacave.com/Eco-Plus-Flexible-Air-Diffusers-P2853C27.aspx

I will be running the air diffuser through a 1" pvc pipe with a slit in it to mount the screens on

LEDs will be a 4:1 ratio of 660nm to 455nm split up between the heatsinks.

I'm using a 100g rubbermiad sump and so the 60 degree optics are on the LEDs so penetrate the water

Here is a mock up:


Thoughts, comments?

07-15-2012, 02:12 PM
You will be feeding 30 cubes a day?

Milad LEDGroupBuy.com
07-15-2012, 02:26 PM
It's a large system but we will not be feeding 30

Basically we have the room and LEDs so we wanted to try the overkill method and report back with what happens.

Worth the try?

07-15-2012, 02:30 PM
Interesting concept. Backing off the LEDs with optics to get doublesidedcoverage without being up against the glass or using mirrors. But as sm stated that is a huge screen, we know from experience that oversized screens do not grow well. To really test your setup just make the screen the
Right size so get honest results.

Milad LEDGroupBuy.com
07-15-2012, 02:42 PM
The LEDs are very far from the screen so without the optics, most of the light won't reach the screen.

Milad LEDGroupBuy.com
07-15-2012, 02:44 PM
Also. There is one led fixture on each side of the screen.

07-15-2012, 02:50 PM
Figure your feeding and size it from there.

07-16-2012, 01:30 AM
Doesnt matter what good optic you will use. Light entering water surface at that angle is rejected at very bad proportion. So most of it will be wasted. Thats why we strive to make light enter at 90 degree. Think of that when calculating total wattage.

07-16-2012, 08:27 AM
Well the bubbles on the surface will be of all different angles, so the main criteria will probably be distance.

07-16-2012, 09:20 AM
You really need to build it to what you are feeding for the screen to get green. Over sized screens grown brown weak algae. Check this link for sizing: http://algaescrubber.net/forums/showthread.php?1419-New-sizing-guidelines

Milad LEDGroupBuy.com
07-16-2012, 01:38 PM
You really need to build it to what you are feeding for the screen to get green. Over sized screens grown brown weak algae. Check this link for sizing: http://algaescrubber.net/forums/showthread.php?1419-New-sizing-guidelines

Thanks for the info

What I think I will do is use same pump/difussor and lighting and just put up 1 or 2 of the 8.5x11.5 screens.
I can tune the lighting because its on a dimmable driver and the extra air shouldnt hurt.

Whats going to be interesting to see as you guys stated, will there be enough lighting even with the tight optics because of the angle the fixtures are hung.

07-16-2012, 01:47 PM
Well for sure is that there will be very thin growth with that large of a screen.

07-20-2012, 08:26 PM
Reading this thread I got curious... supposing I was feeding 30 cubes a day... is the UAS/ATS scalable to that extents? Thinking about a big FOWLR tank...

07-20-2012, 09:02 PM
Any size.

Milad LEDGroupBuy.com
09-24-2012, 10:02 PM
Here is my original plan for the ATS but its now changed to only 1 screen and 1 LED fixture (turns out this is more than enough for my feeding schedule)

My build includes:
5x 60 degree 455nm Royal Blues (http://www.ledgroupbuy.com/bridgelux-royal-blue-455nm/)
16x 60 degree 660nm Deep Reds (http://www.ledgroupbuy.com/deep-red-660nm/)
6" MakersLED Heatsink kit (http://www.ledgroupbuy.com/makersled-designer-heatsink-kit-professional-grade/)
500mA 12v Power supply for the fan (http://www.ledgroupbuy.com/12v-500ma-power-supply-for-fan/)
40w 700mA Inventroincs driver (http://www.ledgroupbuy.com/inventronics-40w-driver-700ma/)
Arctic Silver Ceramique 2 (http://www.ledgroupbuy.com/arctic-silver-ceramique-2-25g/)

Additional tools:
Old credit card
Scissors to cut the old credit card
Phillips head screw driver
Solder iron and solder
Some good tunes

So first question you are probably asking yourself is why do I only have one driver for 21 LEDs? Well I dont really care about sunrise/sunset for this and Im using very efficient Deep Reds that only use 2.3v.

This means the 40w driver can do up to about 24 Deep Red LEDs without a sweat. I want to get as close as possible to the max of the drivers voltage because its easier on the driver and it will last longer.

First we get all our screws lined up:

Then we cut up the credit card into a nice little strip and use it to smear the thermal grease around the LED and also the heatsink. You dont want to touch the grease because the oils on your hands can break down the grease.

Royal Blues lined up:

All the LEDs:

Everyone always curses at this point because if you dont think about how your wires are going to run, you will kick yourself at this point. I switched every rows polarity position so I can easily just jump between LEDs when wiring:

All wired up:

Just barely on:

Full on:

As you can see, all the LEDs are 53.1v at 500mA so almost the max of the driver

The finished product:

Milad LEDGroupBuy.com
09-24-2012, 10:04 PM
So its been running for under 24hours now, screen is starting to turn brown



09-25-2012, 04:31 AM
please update it regularly milad,
my want make uas lighting like your method..


the lamp is on there,not 90 degrees from uas..

Milad LEDGroupBuy.com
09-26-2012, 06:57 PM
72 hours in and the screen is really brown/black now

09-27-2012, 05:52 AM
Thats how they start. When I get the black stuff I remove it. If its brown I let it go a couple days to see if it goes green and if not I clean it. Can you provide some pics that show the true color, that would tell us a lot more.

Milad LEDGroupBuy.com
09-27-2012, 06:40 PM
So this is day 4 at 8hrs of light per night using the LED system mentioned above
air pump on all the time


09-27-2012, 08:56 PM
More hours.

Milad LEDGroupBuy.com
09-28-2012, 12:07 AM
More hours.
How many more?

09-28-2012, 10:23 AM
Try 2 more.