If I understand correctly, the only reason the Pineapple needed to use PWM was in order to be dual chemistry. If it was only AA and Eneloop powered, PWM would not be needed. Im not sure I understand whether LiIon chemistry would require PWM, like the 7135 uses.
here are photos of the new preon and the malkoff, I do not know the speed of the Preon PWM (it has somewhat green tint, even with PWM… probably due to the LED itself, not the circuit, )
[QUOTE=gurdygurds;5011460]Well I now have two Nichia 219b lights and I’m really enjoying them. Received a Copper worm from Gunga yesterday(thanks again sir) and quite like it. Here is a shot of it next to my Preon P1 gen 2.
And here is a side by side comparing my two Malkoff MDC AA lights. 4000k vs 6200K. I absolutely LOVE these flashlight!
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there is a way to determine PWM speed with water drops and a camera with adjustable shutter speed:
[QUOTE=Lexel;4991544]All Convoy lights with 7135 drivers use 4500Hz PWM
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regarding tint shift
two XPG2 on high, for tint comparison (NoPWM part of the circuits)
the CC light was greener to begin with, not by a lot, LED variation, not PWM caused since these lights are not in a PWM mode
same two lights on Medium…
I dont see a serious green problem with the CC light in this image
the tint shift is more obvious in this sweep
I dont see a large green shift from CC in my lights with N219b or XP-G2, or XPG… , I suspect the XPE had more of a problem with green tint.