durable mass produced (non-custom, non one-off) LED flashlight

[mdmvrockford]

Thank you so far to all who have responded.

In my readings for LED flashlights there tend to be “durable” (and also adding to OP similar desired characteristic of ) “reliable” manufacturer brands and within those brands specific models. The same goes for many other consumer manufactured items in my experience. To date, my recent Olight flashlight purchases have been almost all in their M series and ones with as many as possible characteristics described in (2) below.

Thank you to BurningplaydOh (post#4) and ValueseekeR (post#10) for mention of pFlexpro as before your posts I have not heard of that brand. Until last month, I have not been in LED flashlight market for about ten years. And in reading about pFlexpro since mentioned in above posts, it appears pFlexpro is generally regarded as durable and reliable with great customer service and all for price much less than S-E-M-H brands mentioned in OP.

ToddcShoe (post#10) you appear to confirm what I have read repeatedly: fully potting an LED flashlights is one of the most important characteristics of durability. But again I currently cannot work on my own flashlights and thus I am in the minority among the typical BLF members At some point in future, I hope to start doing my own work on flashlights.

Also from above, one can add Acebeam to the list of generally durable brands.

@djozz

Over my modding years I gained respect for flashlights that are truly durable. That takes a very significant effort for manufacturers.
I have done numerous repairs on my own mods because they failed where I did not think that they would fail. Nowadays my techniques have improved a lot and I am confident that I can mod a (basic) flashlight in a way that makes it tons more durable than the stock light ever was. And still the flashlights that I actually use a lot surprise me every now and then with a fail that I had not foreseen. And then I do the repair in a way that that particular fail can never happen again and I have learned a bit more. Repeat!

Two follow up questions for you and others:
(1) Besides pFlexpro, what are some other durable mass produced manufacturers (besides Surefire, Elzetta, Malkoff and HDC)? I understand technically that pFlexpro can be considered not mass produced and is kinda one-off. But clearly their products are not in the price range of the S-E-M-H brands nor the low production number “high end” brands (e.g. McGizmo, Muyshondt, Hanko).
(2) In reading BLF and the other forum (e.g. some characteristics of durable and dependable flashlight ) in no particular order characteristics of durable and dependable flashlights appear to be:
fully potted
simple UI
no in-flashlight charger
mechanical switches
good heatsinking
o-ring for each side of clear lens
springs on both the positive and negative end of battery compartment.

I ask (2) above so I and others who (currently) cannot perform own mods will know features/characteristics to be on lookout for.

Thanks.