Overmyhead, I just recently started building LED panels with 3W LED's. I have a 3:2 ratio for Red:Blue LEDs, and it produces pretty close to that hue, when I take pictures....
How do your bars do for you? Meaning, are they producing well enough to be a viable substitute vs HID? My panels are producing 70-108 watts (Depends on my power source), however I designed one for a friend that was 150 watts.... Once it's built, I'm sure it will be blindingly bright!
They have the same design light shield as an HID lamp, and the 108 watt model will produce a patch of about 4x4 feet2 at 2 feet above the plants. They don't run much hotter than 35 degrees, MAYBE 40 Celsius on a HOT day! Also they last 50,000 hours FOR SURE! manufacturer states the LED should last about 150,000 hours how I have them set up.
I'm hoping soon to start selling them on eBay, $500 sure beats paying $1,200 for the "procyon 100", and mine produces more wattage.... and I guess could be customized to anyone's request for light ratio. Both the procyon 100, and mine use 3W LEDs.
Sorry for a sales pitch of sorts.... disregard it if you don't like it I guess. I'm new, and kind of more interested in learning how others are using LEDs.... because I want to use them myself for my own horticultural needs.