Glad to hear this information! I hope Lumintop is able to make use of your research.
From the latest list update: 1715 lights x 3 emitters / light = 5145 emitters.
My understanding is these are sold in 800 piece reels, or in 4 reel cases (3200 pieces).
If Lumintop are willing plan on half of buyers going for the LH351D, plus a modest number of additional sales beyond the group buy, then ordering a case should be justifiable.
Iām 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, hereās 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 LH351Dās (TC bin?) that measured at +.0036 Duv (assuming āmediumā is the closest condition to the binning conditions of 1050mA).
2 weeks ago when ToyKepper proposed 3 choices, the deal was to wait for a better (rosier) tin bin T1, T2, T3, T4. It was not to wait for the greenish T6. :weary:
I also would prefer below the BBL, but Iām being open-minded because I know some people have stronger feelings about color temperature than I have about small positive Duv values.
What encourages me most about Maukkaās testing of LH351Dās with a similar or worse Duv than a T6 should have is he saw limited tint-shift across the beam in a Carclo optic. Find a rainbow beam more distracting than slight deviations from the BBL.
Yeah its very green corona/hotspot that is the worst. I can stand above BBL if itās consistent across the beam (and the CCT doesnāt shift too much either).
Iāve been pretty happy with the 4000K LH351Ds I got from Mtn-Elec that I put in my Q8. Donāt have any idea what tint bin they are but less green than a lot of Cree emitters Iāve seen that werenāt specifically binned for on/below BBL.
Yeah, itās kind of important to be as accurate as possible about the lists. I donāt expect to reach 100% accuracy, but some past projects have gotten as high as ~95%.