I like to keep mine fairly simple and not adjust after setting, the constant adjusting is what will stall out SPS. When I ran them by themsleves I ran them at 100% B,DB,V 22% w 25% R,G 40% V , I ramp for 3.5hrs 5hr peek and ramp back down for 3.5hrs. Intensity at 85% at 12" AWL. I now use them with 4 T5's, same setting just less intense and closer to the WL.