After reading about the Lowes TF Cree, I had to find out what everyone was raving about. Going to 4 Lowes in San Antonoio I found 3 - two with the white Cree board at one store and one with the black Cree board at another store (CPF'ers probably bought the others before I found them
). One of the white Cree boards was off center the other was near perfect - bought that one. The black Cree board was also near perfectly centered - bought that one.
FYI, the color of the Cree mounting board is seen when looking into the reflector, the LED board color is visible between the hole in the reflector and the LED itself that is mounted in the center of the board.
Comparing the two, the different colored boards are from different manufacturers. Soldering looked OK, so contact/continuity should be good.
Testing:
Inside: the white board Cree had a very defined hot spot, beam nearly perfectly centered, and a nice crisp white color. The black board Cree does not have a well-defined hot spot, beam nearly centered, but the color is tinted yellow.
Outside: comparing to my Mag 4D with the TerraLUX TLE-6EX LED drop-in rated at 140 lumen (all else is OEM) and beam focused to a hot spot about the same diameter as the TF when shined on a fence about 50 feet away - to my eyes the Mag and TF with the white board Cree are about the same as far as lumen go, hot spot on the TF was tighter/more defined/brighter, spill better on the Mag, but the TF spill was usefull. The TF color was slightly more white, but this may be due to the tighter better defined hot spot. Shining on trees/utilty poles 200-250 feet away, both the Mag and TF illuminated about equally - very good detail (smaller branches and leaves easily seen/distinguishable as were the smaller components on the utilty pole like bolt heads).
The black board Cree's indoor problems were magnified outside. The Mag had a better more defined hot spot, brighter, and whiter. Spill not as good as the white board Cree due to the yellow tint. That said, it's still a torch and lit up trees and the utilty pole pretty well. I'm going to return it :thumbsdow. I do not know why the black board Cree is not as good as the white board Cree. It could be that another comparison would yield the opposite results. Another thread may hold the answer - a CPF'er took apart the TF and did a serious analysis. I need to find that thread and see what it says.
My advice: if you can find several, find the ones with the best centered LED, pick both a white board and a black board Cree (if you don't have the choice pick 2-3 of the same color), buy'em, test'em, pick the best, and return the rest.
Sorry, no beam shots - my camera is an old 35mm Nikon :shakehead ! I've got to go digital soon, but I have sooo much invested in my 35mm its going to cost a bunch to duplicate with digital
!!
Cheers!