Did any y’all happen to measure the diameter of the driver? Hell if I can find my calipers, and a ruler’s not terribly accurate…
Yep, Angry Blue™ with a touch of Hateful Purple™.
Yanked out the press fit metal retainer holding mcpcb down. Drilled holes into the rollo pill to facilitate removal, the bezel wouldn’t grip the o-ring enough to help and drilled holes into the plastic press fit switch retainer, it was pretty tight. Removed the mcpcb, popped the driver out. Easy Peasy…
Driver diameter 14.86mm Driver pocket in pill 14.82mm on my fine example.
Ahh, yeah - brings back memories... I got mine but didn't tear it down yet. Tailswitch is super stiff - just like the SK68's - don't think I fixed that before. Ohh, I see the drilled holes in the tail switch now - I've done that before too. The ZeusRay had a terrible switch, but at least they had the real thick shelf and decent LED, least at some point - quality was hit&miss.
Oh, bugger. So it’s not a 16, then. Wondering if I could just shave it down a fractional-mm and not kill it. Hate when They™ put hair-thin traces so close to the periphery…
Screw it… might just stick in a N×7135 dumb driver (ie, 1-mode, just hardwired 7135s and a diode) and not worry about it. It’d be a 14500-only light, no more alkaleak/NiMH support, but who cares.
Yes, that is what I will do.
Not marketed as a deal but this is a very good 4 port charger for 5.99, originally 9.99:
ZMI PowerPlug 4-Port 35W USB Wall Charger Power Adapter, Portable with Foldable Prongs for iPhone, iPad, Samsung Galaxy, and More https://www.amazon.com/dp/B0744HFMCG/ref=cm_sw_r_cp_api_i_ZT2wCb7FPW408
Olight X7R now a Lightning Deal. From $279 down to $209. I will pass but thought others might want to be aware.
That deal appears to have expired, but when I clicked on the linked Amazon ad yesterday, it appeared to be for the original version with the higher moonlight and unimproved tail switch, rather than the newer version with .5 lumen moonlight and improved tail switch.
I could find next to nothing on the PF04 in regards to reviews, just one video.
Even at the regular price of $14.99, it seems like a decent deal, if it’s a decent light. I’m tempted, though I don’t know if it would kick my Nitcore MT06 (now out of production) out of my pocket.
Yeah, it does appear to be the version with the 1 lumen moonlight. Which personally is just fine with me. :+1:
But I’m curious, how do the switches differ between the two versions?? What was upgraded switch wise??
I don’t know the details of the switch upgrade - I read some references to it in the Amazon reviews.
Most of the poor reviews referred to switch failure.
/\ . Thanks for the reply. 
Just got the silver one delivered today from the vipon deal.
Observations compared to my older silver PF04 ;
New one has more of a shine and almost a metal flake finish, older one is more like duller aluminum color.
Old one still has better creamy tint but have just come to realize it is just the tint lottery as the other 5 PF04’s that I have in different colors do not share that tint.
It is still a nice tint with no blue or green.
New one has wider spot/more flood. Reflector appears the same so do not know what the diff is, maybe focusing.
See no difference in the moonlight they all are nice and low and would venture that they are under 1 lumen,
Regarding the tail switch I have only had one with flaky switch and that was from over 1 year ago so whatever the issue was it was random.
The switches are still stiff and that will probably never change but they are usable once you are used to them.
These penlights are very nice for the money and remains my most used flashlight. 3 modes, no blinky, no BS.
I set up different heavy shirts for winter with a PF04, Reading glasses and a pen so the shirt is always ready to rock and roll.
Later,
Keith
Thanks for the PF04 rundown Muto, good info.
How does the head come off? What other emitters do you suggest to replace this XP G?I’ve got a XM L2 from a C8 that is less blue than this one.Would that work?
Extend the head all the way and keep pulling outwards while you unscrew counterclockwise (left). I think Kawi said his was too tight to do this (at least I assume this is what he meant), however, it worked fine for my light.
Thanks , I will give that a try.
Edit: Yup, that worked.
Unscrew the pill. Mine (pill) was tight so the friction between the head and o-ring on the pill didn’t work, when I tried unscrewing the head. The board is 15.65mm on mine, don’t have the pill with me it is at work, was going to make a press fit slug for it, but I think a 16mm board will work? So what ever you got on a 16mm board…I have yet to mess with the resistor on the driver, so I don’t know what the driver is capable of yet. On a 14500 Purple Efest I think I got like 60-80lms stock, IIRC?
Edit:
With the (1R5) 1.5ohm resistor 2” 22awg leads, I got .83amp High, .20amp Low and ,43amp Strobe measured at the emitter.
Jumped the resistor got 1.45amp at the emitter then went single mode. It did got thru the levels twice, then went single 
Now to wipe it clean and piggy back a 12mm FETDD driver…That I have had (a few of them) bought at RMM’s Garage Sale years ago…
Thanks for the rundown . Let me know what the final form turns out to be. I need to order parts to do any mods. Any recommendation for an emitter/driver combo?
Just fyi, I've been working on the TESLACOM light, got it fully apart. Got the tail knob thing working better. Swapping 4 springs with the small Blue ones, and the spring in the tail assembly I swapped for a brass button.I could swap the driver but just might keep it for now. Swapping in an old XML2 U3 3D on a SinkPAD I had for while now, did a resistor bypass, and will swap the 24 AWG LED wires to 22 AWG. Not expecting anything too crazy but should be a nice boost and tint, hoping for 1000 lumens or so. The shelf for mounting is not so great, but figure using good thermal grease where it's needed will help, and sanding surfaces down.
For the hard-to-press button, I added some epoxy on the inside of the button, and also added some on top of the switch. I'm thinking this should improve it. Looks like in assembly, they cut down the button knob inside the button cover, so I guess they had troubles with it, just think they cut it too far down.
The UI really isn't that bad - 4 modes, appear to be well spaced, w/memory (I think, if I have memory...), and think it was long press to turn it off.
The charging circuit looks well separated from the MCU that drives the light. Both the charging circuit and the MCU have access to red and greed aux LED's. A 17 mm driver should fit in there, replacing the perpendicular mounted board that controls the main LED. I clearly see where batt+,grnd, the switch, and the aux LED's come in to the board, so very do-able.