Mixing LED Colours on custom fixture

_Adrian_ · #1 10-17-2015, 06:02 PM

Thanks !!
I was planing to use 90 degree optics on the white's and blue's and the rest were going to get 120 degree optics.

I guess the overall wording is wrong lol
What I'm trying to find out how to spread the LED's on the board to achieve the most efficient blend of colours.

I seen a few different ways of doing this and its confusing

Ron99 · #2 10-17-2015, 08:01 PM

it's more complicated with optics and the fact you want to mix cool white and warm white and royal blue and blue which will lead to slightly different colours in different spots. When I built mine I did 4 rows of alternating cool white and royal blue. Each LED in the row is about 2 inches apart. The rows are spaced about 3 inches between them width wise. They are also the opposite arrangement if that makes sense. So if row 1 is WBWBWBWB then row two is BWBWBWBW and row three is WBWBWBWB with row 4 being WBWBWBWB. My 4 violets are spaced out evenly down the centre and the 4 greens and 4 reds are staggered front to back and length wise as well. I don't use any secondary optics on the violet, green or red so I get a pretty even spread from them.

kamloops_reefer · #3 10-17-2015, 10:10 PM

you might want to post over on nano-reef.com there is some great input there from the sellers involved at LEDgroupbuy

_Adrian_ · #4 10-18-2015, 12:24 AM

Thanks guys

The optics are fairly cheap in comparison to everything else.
The heat sinks for the LED's were $120, aluminum light enclosure ( 52 x 12 x 4 ) was $175, main board of the controller was $60 and the daughter boards were $80.
I'm not even going to mention the hours of R&D I sank into it and the $50 or so of SMD parts, but... in the end it will be a cool package giving the end user 24 channel LED Driver.
Yes... I will be selling the units once I have it dialed in and running right.

Ron99 · #5 10-19-2015, 02:49 AM

So you're doing this for yourself or as a commercial venture?

_Adrian_ · #6 10-19-2015, 05:29 AM

Quote:

Originally Posted by Ron99

So you're doing this for yourself or as a commercial venture?

A bit of both...
The Driver will be the venture meanwhile the fixture will be the test. There's also an aquarium controller with full array of accessories on the horizon as well...