Quote Originally Posted by WeayLay
Hey Weezard, primarily wanted your advice first. The heat sink that I have chosen out is very good quality, and has a 1.7 degree Celsius/Watt thermal conductivity. It is further decreased with active fan cooling. I've been looking at the Cree XT-E Royal blue in a tri-star setup, but I can't find any that have been reflowed onto a Tri Star MCPCB (Metal Core PC Board - better for thermal conductivity). So you suggest Deep red instead of red, I guess that would be the smart idea to do, because this panel is going to be my one panel for flowering and veg growth. But honestly, I'm going to veg for a very short time, so I think putting 4 reds and 2 blue would be more beneficial.
You think the drivers would be happy with having one red and two blues to power?
You know of any place that will reflow LED's?
The beauty of constant current supplies is, you can mix leds, wire them in series, and set the current that you want.
The forward voltage drops will sort themselves.

With skill, you can reflow at home with a mini-torch.

A good soldering iron is safer though.
You just need lots of magnification, and a very steady hand.
Bead the pads and, set a clamp, (wooden clothespins with shaved tips work well), but a large hemostat will also sink heat.
(I used small aluminum clamps that are sold as transistor leads, heat-sink clips, 'cause I had them on-hand.)
Then clean/tin a decent iron and dance around the chip.

I know that it sounds easier than it actually is.
I can't do it myself, anymore.
Give it a try, maybe you can.

If not, hmmm.:detective1:

If you know a jeweler, try bringing the pads, chips, and solder with you and ask what he'd charge.

I'd give you a link to a tutorial on home re-flow soldering, but it's on a different board, and they don't allow links to better boards.
Sorry, I no pay da bills here, so I no make da rules.

Aloha,
Weeze