Okay:
4 -15W reds on a 60-12 is a match made in heaven! :angelsmiley:
Or even 3 -15's, if you're really pushing them.

I'd use 2 60-12's and use 8 reds. But do you have a bench supply? You want to be able to test the leds by running them up to 1200-1300mA each, and see what voltage it takes to push each individual led there. I make a little table and measure:

led #1 red:
10.3V gives 1.1A
10.4 " 1.1
10.5 " 1.2
10.6 " 1.2
10.7 " 1.3
10.8 " 1.3
10.9 " 1.4
11.0 Didn't dare push harder, gets expensive!

So this led'll be happy running at 10.6 -10.7V.

So, if you've got a bench supply, you can power up to 7 reds with it, and use it to match up your emitters while you build the light. :thumbsup:

If not, you've gotta guess where to set your voltage, so you wanna be more conservative.

Lemme know and we'll proceed from there.


I do have four questions...

1. How do you power the Mean Well's? Is it just an AC cord plugged into an outlet?

Yep. They come with a short 3-wire pigtail. Need to provide a supply cable, or at least the AC plug. Got a pic or two I'll post for ya, explains the coding.

2. Is the dial on the Mean Wells what controls dimming?

Sorta. there's 2 little trim pots inside. One controls voltage. I set that where I want it, under load, with the other trim pot (the "dimmer") up full. Then I turn down the dimmer pot until it just kicks in and starts dropping the voltage. That sets the current max so your leds will stay well-regulated. I leave the plastic covers off mine so I can adjust them, and since I do that anyway I put little heatsinks, CPU coolers, etc. on the heatsinks in the Meanwells.

3. Do I have the right model driver for powering six reds?

Talked about that already. Mastech makes a great power supply for ~$165 shipped. Model 3010, up to 30V. Highly recommended. If not, I've got some data on real-world measurements of the 15W's so we can get a safe guess where to run them. But you'll want two 60-12's if you no got bench supply.


4. What powers the fan?

A single 120mm computer fan, ($5) running at 12V. will cool your light jes' fine. I like things quiet, so I run 2 fans at 9V. (One would prolly do it.)with wall wart adapters. Power 'em off separate supplies for backup. Wallwarts are cheap. Led drivers, not so much. Using led drivers to power fans is jes' a waste, I think.

Weezard has used thermostatic switches to kick fans on and off. On lightweight lamps the start-up torque gives you a free mover. Lotsa possibilities. Are you mounting the fan flush against the fins, like the Procyon?




Hey, I see your new post while I'm writing this...

Get a mastech, you can run all 6 reds with it....