I’m not sure the Digi-Key rep got the color temp for T4 quite right. Looking at the datasheet and trying to scale the chart on page 10, here’s how I read it:
- T6 should be 4000K to 4125K, and Duv roughly +.002 to -.004
- T4 should be 3750K to 3875K, and Duv roughly
.004 to.010.
It looks like there could be a choice to make between rosier tint at a warmer color temperature versus a color temperature with broader appeal plus 20 lumens and a chance of just enough of a greenish tint that discerning users might notice.
As a related reminder, Maukka seemed pretty happy with a Carclo triple-equipped light he modded with LH351D’s (TC bin?) that measured at +.0036 Duv (assuming “medium” is the closest condition to the binning conditions of 1050mA).