I use and recommend Streamlight products in demanding industrial (and other professional use) environments like mine, and for over a dozen years of my work, those have been Strion models (with Scorpions prior to that). Streamlight is likely your best choice after all
factors are considered.
If you'd like a specific recommendation, my latest / current choice for my personal needs is the Strion DS HL, which I absolutely love, and so far, I would not replace it with anything else I know of on the market today - at any price
. It replaced (as primary) a decade+ old regular "Strion LED" (which is my current backup), which itself had moved my Strion incandescent into backup role prior to that. Zero maintenance, failures, adjustments or repairs with the first two, so I don't expect any different with the newest one.
The current Strion HL is essentially the same light without the side switch (DS), and is slightly shorter as a result. As someone who practically never
uses a side switch (it's like an unnatural act for me personally), in a very unusual move, I got the DS version anyway because first, it's only a bit longer, and it's well designed and is very innocuous and doesn't get in my way or bother me - so there's practically no (significant) penalty for having it. I carry it bezel-up in an open top holster, so that little bit more length doesn't really make a difference in practice. Second, I function in some difficult situations where I may occasionally need to grab my light in an unusual way, and it could
(at least in theory) at such times be an advantage to have that switch option with some unusual 'hold' I might have to use. Most importantly though, and all that aside, as it's designed, it provides me with 100% functional switch redundancy. No single switch failure can put me OOS. Essentially, my light simply has
to work - right now, and every time, so that's a big deal. That second switch takes the item with arguably the highest statistical failure rate out of the equation.
Here's the link to the DS HL model I'm using. Open the 'Documentation +' button for all the complete info, with the "Fact Sheet" being the primary doc for most all the specs and data on one page. While you're looking at that Fact Sheet, give a glance down lower right at that output graph. You'll find it's very
unusual (in terms of its relative 'flatness') for a flashlight in 2023. The output of this light is highly consistent, which is a plus if observing something potentially changing, critical, and perhaps on the edge of visibility over a period of time. Application wise, that is one case where industrial may be a bit different from tactical. Anyway, if you end up looking at that one and have a question, just ask - as I have one here to play with.
BTW, my world is almost entirely electrical in nature, and while SL offers some good stuff that's purposely 'insulated', the reality is that if I'm using my light in a situation where it would matter, I'm already in total violation of all Co. / plant safety policy at that point, so I'm already in trouble. Therefore, I choose my work flashlight without considering that. As an aside, I do have a SL 'PolyTac X' on hand if I ever feel I need for that for some reason. Without the clip, it's pretty electrically inert, so I have that available as backup - if I should want it, and it can do a lot of what the Strion can do. Not that I would need it of course - just sayin'.
This is just my choice. If the Strion DS HL / HL isn't right for you, keep looking around the vast SL catalog and you'll almost undoubtedly find something that is!
Edit: Also keep in mind that this Strion uses a Borofloat lens, uses lithium ion power supply, has a FL1 2-meter impact rating
, and other nice features that make it a tough combination to beat, so do
read the fine print.