Hi Fran, thanks for explaining!
But when I look at your measurements, it only draws 660mA on High, so that would be at around 3 hours on a standard Eneloop!? with 90Lumen of output… I don`t think that`s bad at all.
3x660=1980 (standard eneloops are around 2000mAh)
I tested with a 2500mAh (2300mAh in real life) Ni Mh and I got bored………
After about 2hours and a half I stopped the test because the output was the same than when I started the test………
And then discharged the battery with the Imax to 0,9 volt @600mA discharge rate.
It had about 400mAh of charge still available ……
So we can probably conclude that it will run for about 2.5-3 hours on a standard eneloop on High!
yes, you will have the highest output it can deliver (90 lumen) during 2- 2,5 hours.
Also with 14500, it should have about 200 lumens (more or less) during more than 1 hour, without stressing the battery (only 660mA current draw)
Not bad.
fran, with eneloops is the ra04 brighter or the e09?
hmmmm………….
I need to test again to compare…. but I would say (if my memory is OK) that the tank E09 is brighter
I have checked again with fully charged NiMh´s.
Is extremely difficult to say, the problem begins with the differences in the LED and the size of the reflector (xpg r5 VS xpe R2 and deep and wide VS shallow and not wide)
Difficult to say, but without measuring equipment the E09 is slightly brighter……
However……… this comparison………… diferent LED´s, different reflectors………… very difficult
Hi fran, thanks for your efforts!
My method of comparing OTF lumens is by illuminating a long room, or by doing a white wall bounce (not white ceiling bounce!).
Am glad that you like the Bronte!!
hmmmm…. I should do a ceiling bounce
.
However I was comparing them by just pointing them to a white wall in a long room. The conclusion I said in the above post was using that method, not the ceiling bounce…………
But, even with the ceiling bounce method… without equipment………. I think it will be difficult to say………
Thanks a lot for the review! 
For myself, I dont find it ugly at all! I really like the conservative design instead of all the fins and tactical features on other lights.
I only got one question left: Are you sure it has no visible PWM? I ask this because other bronte’s (like this one) seem to have it, and I feel quite sensible to PWM…
Thanks in advance!
OK. So about the desing… it is more your personal “liking”. Some people will like it, some will not.
About the PWM. I can not notice any PWM at all, even pointing it at a running fan. No matter on which mode.
Great review, thanks!!!
:heart_eyes: 
Information update for anyone interested:
The sample I got recently from dx, shows PWM on Mid and Low Mode.
I measured it to be around 900 Hz what is rather high, some people will not notice it in usage, but sensitive people will.
Thanks for the info!
It seems they changed the circuitry. My unit has no PWM on any mode… Can you “tell” the lumens it gives without measuring equipment, as I use to do (more or less)?
fran, I am buying this flashlight to use a 14500. What is the runtime I can expect on high? Can I run it continuously for atleast 45 minutes on high with a 14500? or would it get too hot and burn?
agent80, sorry bcos I can not answer your question… why?
it seems that Bronte changed the driver board of this ra04 some time ago….
The unit I have, is one of the firsts batches, and seems to be current controlled (no pwm visible).
Now it seems that they use pwm…. so now I dont know much about the new board….
The earlier units (such as the mine) had a current draw on high mode of about 660mA (both with AA and 14500), so with a 14500 you could easily get more than 1 our rumtime on high giving more than 220 lumens……
but, now…… with the new drivers, I dont know.
Let´s see if someone who has the newes version can answer that…
sorry, mate 
Well, I’ve been looking for a twisty that supports a 14500. Maybe you can recommend something. Needs to support memory too.
this is a good one…. except for that I dont know nothing about the new drivers…
how much do you want to spend on it?
Between $30 to $40. Can’t seem to find any twisty’s that support a 14500
have you checked if the oem nitecore ezaa is still available to purchase at intoutdoor? it is also a good one….