I received the ThorFire PF03 penlight in return for review.
There is a potted driver in it, that I don’t think I mentioned in the video. It has an AR coated lens in it.
Also the threads were lightly lubed and very smooth.
The little switch button is pretty stiff , but not unmanageable for most.
I am not thrilled with Hi mode following the moonlight, (moon/HI/med) but it could be something to do with the tiny driver not having space to set the modes different I guess.
Other than the modes, the PF03 seems to be a good little light overall.
The rest is in the video.
EDIT: There is a definite difference in the driver of the PF04 and PF03 as I have both.
When I swapped out the heads there is very little difference (if any) with the PF03 (using the PF04 head) between high and medium. With the original head on the PF03 there is a significant difference between high and medium.
With the PF03 head on the PF04 however, the PF04 still seems to function the same with either head.
I know this doesn’t answer the question about it handling the 10440 cells but I just thought I would note the difference with head swap.
Heres a link to the light and video below. http://www.amazon.com/ThorFire-Waterproof-Flashlight-Included-Christmas/...
Click any link to see MY REVIEWS:
Maxtoch M24 Sniper / Maxtoch 2X Shooter (2016 factory dedomed) /// ### ThruNite // Archer 2A V3 / Ti4T / TN4A HI / TH10 / TH20 / C2 Mini / TC12 V2 / T01 / MCC-4S /// ### Olight // S10R III / S30R III / H1 Nova / H1 R Nova / X7 Marauder //// Orca T11 / Nitecore EC20 / BLF A6 / Custom Convoy C8 / Lixada Triple 3800LM / Lixada 1000LM / LuxStone X30 /Small Sun ZY-T43 / Warsun X60 ////////Thorfire /// PF03 , PF04 , Upgraded PF04 , C8 , S-50 , VG-10 , VG25 , C8s , BL30 , S1 ////