I really need to tidy up the wiring.
I suspected that because the positive terminals on the LDD5 were continuous that they were common. I want to cut down on running 10 conductors to the Storm and instead use 6. But that didn't work.
Im a complete noob with PWM devices. I thought originally that the PWM signal just "told" the drivers how much current to give the drivers. But I notice something, when I am turning up the signal the LDD array whines until it hits 100%, then goes silent. I now suspect that it is just oscillating the the power on and off to the LEDs.
And that is why using a common doesn't work.
The Crees that im using are these.
They have the lumen output and the color I want. And is only $15.
2 Cree 2520s with 2200 lumens at 500mA and about 150% at 1000mA(at 25C which these will never run at)
4 Cool Blues
12 varied Violets
They array chips virtually destroys the strip club effect. 5here is more shadow difference from the two arrays themselves; but no different than a multi MH setup.
Subjectively only, when all the channels are at 100% the visual color is somewhere between a 12,000 and 14,000K light with a faint purplish cast. Thats almost exactly what I was hoping for.
next build will have a few more RBs and more Violets; for the display tank. I was thinking about a Hydra over that, but I suspect that the PAR will be too low for my needs.