Why not go way "out of the box" and use some dual chips (2 channel ww/cw on board..)
SI-N8B1816E0WW Samsung Semiconductor, Inc. | Optoelectronics | DigiKey
These are 2700/5000k chips but supposedly have some w/ higher cool white..
$16/chip.. 2000 lumens 500mA at 35.5V approx..17.75W each..
Not stocked though..
Doing visible color temp mismatches w/ too much separation gives a "blotchy" rendering.
"A man with a watch knows what time it is. A man with two watches is never sure."
Last edited by jeffkrol; 12-15-2016 at 05:59 AM.