It is very interesting to know how much volt is left here when the test is over
here is another data point for you
thermal guy said:Well just finished run test with my 85tr twisty. Lowest setting 3400/18650.
355 hours. Just short of 15 days. Was expecting a bit more then that but that’s what she did. Battery was at 3.4 at end of test.
note the above test ended at 3.4v, and note the battery has 3400mAh LiIon.
Indeed, the new driver was introduced with ACME models, to accommodate the rotary control part, even on non rotary lights. The low was reduced something like 4 years later, but the overhead on the driver makes that 0,02lm consumes almost as much power as 0,08lm...what's used to drive the led being insignificant compared to what the driver component take.
Edit : new driver came with firmware 2.0 in 2010/2011, lower low introduced end of 2013 with firmware 2.10 (haven't checked on HDS website, this is from memory). Also 40s burst compared to 10s on the old "more efficient" driver
I confirm my 2011 Rotary w fw2.0 has a 0.07 low, and a 40s burst
my research indicates 6 days runtime on lowest mode w CR123
Minimum level will work for 76 hours
Thank you for confirming 3 days on lowest mode w 16340. That makes sense since primaries have double the capacity.
I personally never leave my 2011 Rotary on for 24 hours a day.
I do not use it as a night light, but if I did, it still would not be on for 24 hours a day..
The beauty of carrying spare batteries, is that when one runs out, I simply put in a new one.
thermal guy is the King of Low Mode Runtime. He recently got 20 days, but not on lowest mode, from his U60 w CR123, but the max on his light is 60 lumens.
My U60XRGT just ran for 20 days at .33! And I have 4 more levels lower then that if need be.love old school hds lights.also let the battery go down to 2.3 volts. Gets every last drop of juice out of the battery.
60 lumen limit, and running the light near minimum for 20 days, and using Primaries, is not relevant to the ways I personally use my light.
My rotary is capable of 200 lumens, and I dont use CR123.
I see a pattern.. 200 lumens is 3.37 times 60 lumen
even when the U60 and the Rotary 200 lights run on minimum, the runtime is proportional to their max brightness.
20 days divided by 3.37 is about 6 days.. on CR123, or half that on 16340
It seems the lights with lower maximum, run proportionally longer than the lights with higher maximums, even on the lowest modes.