I just used my Emisar d4 out in the cold at work for a good 25 minutes at bright enough levels but above the 350mA 7135 mode. Wasn’t really worried about being conservative. Also used a few times through the day. Threw it on max FET for a minute or two when I got home and let the dogs out and the sucker is still at 4 volts.
So no, I really can’t justify buying 70 80 whatever dollar lights anymore unless it’s something crazy like the mf04 I just bought. But in reality for what you get that’s not really an unreasonable price.
I’m sure ZL has awesome thermal regulation and super efficiency, but seriously if a FET+1 D4 for 35 bucks is too inefficient you’re using your EDC for the job of a Q8. 8 hours of 150+ lumens and ability to maintain a bit more and light the whole area up for 35 bucks. That’s chicken dinner. I’d love a ZL and will probably get one some day, But I agree with the OP. I find it easier to deal with Hank and get parts not on the site to fix or change a flashlight.