OK, my Gladius is on its way to Tekno_cowboy for modding. My initial instinct was to have a natural white (4000K) P4 put in as I use my Gladius under water and color rendering is somewhat important to me. However, I am having second thoughts now. The natural white LED is about 40% less efficient than the U-rank pure (cool) white P4's. So I gather I would get at best 120 lm vs 80 lm of the original Luxeon III. The color T would be superior but is it worth the hassle to gain 40 lm? Won't I be better off getting a U-bin cool white P4 with 180-200 lm and sacrifice CCI a little (90 to 70, OK maybe no so little)?
Does anyone have any experience with Gladius and natural white P4? Any suggestions are appreciated.