Yes, you should order extension tube for 10440 batterie, the Nano is much more powerfull (up to 1000 Lumen) and has much longer runtime with 10440 !
Lumintop will offer a version with Nichia high CRI LEDs, I got mine with SST20 CW LEDs for review (german language):
Interested
Interested
Count me in!
Interested
Interested
Freeme, count me in!!!
List updated.
I got a triple XP-L HI, with a peak reading of 1894lm. 
freeme, please remove me from the interest list. Not because I am not interested, but because something else came up and I won’t be buying this light soon.
If you have a code, later on, I will contact you for sure 
Interested
Definitely interested!
Interested
Interested
No problem! 
interested!
I can't resist any longer! Please add me to the interest list! I have a slight preference for LH351D emitters but, SST-20's or similar high CRI are all good assuming they are "Natural White/5000K~5700K".
Interesting light but I’m not in.
Hi Freeme,
I seem to remember something about the aluminum black GT Nano with the extension tube and a possible issue with damaging the LED when running in turbo too long. Do you know if the GT Nano 3 will have the same issue?
That must be with a 10440, right?