Was just given a streamlight wedge at work and so far I’m really liking it. It’s not anything super special but it’s bright enough for what I need and the form factor is amazing. Much more comfortable in a pocket and sits flat even when wearing a harness over it. Battery life has been sufficient too, I’m yet to ever have any issues with occasional top offs every few days.
Replaceable batteries are nice in theory but the internal one with USB-C is great for this use case. Due to the push for electric cars battery tech is really ramping up and bespoke solutions are only going to become more common.
They're also nice in practice.