Jon_slider,
Runtime specs are important to me, so I may try them myself sometime, but without a meter, I'd have to sit and watch the light continuously to observe dimming.
The output levels don't seem to be higher than advertised, so I'm hoping that the runtimes are nearly twice as long as the C1.
I think I might actually prefer a higher CCT emitter in this light. Maybe 4000 to 5000.
good point that it is easier to observe the dimming with a light meter
since you dont have a light meter, I suggest you check battery voltage instead
when the battery is down to 3.0v, I would end the runtime test
I dont monitor the light constantly, I just set a timer on my phone to check every X minutes, where X is 1/4 of the expected runtime...
eg, if I expect a 40 minute runtime, I check every 10 minutes
if I expect 4 hour runtime, I check every 60 minutes
I prefer 4500k CCT for EDC
I do not use 3000k for daytime EDC, it is a specialty light, that does not actually get used very often.
for me the Warm 3000k folomovs are for simulating incandescent, when relaxing at the end of the evening, car camping, and other times when there is little or no competing ambient light, including nightstand use.
enjoy your choices, congrats on your warm nichias
here is a color comparison between my 3000k E21a and 4500k N219b sw45
and here comparisons to an sw45k, and a couple other CCTs and tints
I dont use my lights continuously for long periods, so I care more about light color and CRI, than runtime, but I respect that we all have many different ways we use a light, and runtime is certainly a consideration to be informed about.
I dont trust specs at all, if I need a runtime reference, and cant find one online, I have to do it myself.
since there is already
a review of the C1
I would just double the runtime expectations with the Pen L1, since the battery is twice as big
maybe someone will post a review to answer you runtime questions
so far you seem to be one of the early adopters and I cant find any Pen L1 reviews to answer your runtime question
I hope you figure it out, and enjoy your lighting choices