So I’ve been basically using my 2000K KR4 as my primary light in the house. On the desk while I work, having dinner in the evening, reading a book on the couch. Man do I love this thing…
Only thing is that (not surprisingly), the 18350s drain pretty quickly. Not a big deal because I have 4 that I cycle through. But today I got the 18650 tube back out and man, the light lasts forever with a Samsung 30Q. Like a couple hours and I was down to 4.05 Volts. I also was shocked at how much brighter the output is in max/turbo even thought I’m using high drain 18350s
If i’ve learned anything from The Fast and The Furious it’s that you can only shoot so much NOS into a Civic.
I dont have my copper FW3A anymore but I recall it didnt even last twice as long on Turbo. I think you do get a few more “shots” out of it until the light is totally saturated though. I think it also maintained like maybe 15-20% higher sustained brightness too. One quirk is copper lights sometimes “feel” hotter on the outside even if the electronics run slightly cooler. $.02 YMMV