I have 3 GT’s in my hand and all give the best intensity around 10m from factory. More distance will loose kcd. I think that is why GT has smaller hot spot because it is a bit over focused. After fiddling mine and added 0,9mm thickness to led centering to raise reflector I gained almost 30% in intensity but after that the hot spot was bigger and I got my best numbers at bigger distances. Maybe MF04 has different focusing but I’m curious what numbers you got at 15, 20 and 25m distance. I don’t have MF04 to test it and I will not able to buy one later.
That should not have any effect on lumens OTF.
It’s possible that both emitters put out about the same lumens, but the Astrolux reflector is slightly more shiny and reflects more light out the front or the anti reflective coating on the lens is a bit better. Reflectors and lenses can typically absorb 20% to 25% of the leds output. In general, bigger reflectors tend to absorb more of the light than smaller reflectors.
Anyway, the GT has a better UI. 
Lol
Yea… blf gt always gonna be the best. You can run 4 cells or 8 cells…
Interestd in MF04S..
EDIT: could you maybe separate the threads for both group buys? I almost thought I was late to the game for the MF04S because I saw a huge list on page 1.
Interested in MF04S. Thank you!
Measured lux reading at 25 meter distance throw.
Thrunite TN42 CW
BLF GT NW
BLF GT CW
ASTROLUX MF04 CW
Thanks for sharing! 
Small batch of MF04 has arrived in warehouse now. I heard there will be another batch coming in next week.
This is considered a big light, manufacturing time will definitely take longer than usual. Your understanding and patience is greatly appreciated
How small a batch? 
Hi,
My MF04 is on its way
Can I get a price for the MF04S?
Banggood says my NW MF04 have been shipped today, one day before expected shipping date :+1:
Same here, got an Email confirming shipping of NW ’04 !
Mine was in it so it must have been quite big
Don't worry, more coming in next week.
Is the code for MF04S the same as for MF04? If not can you please send me the code for the MF04S, too?
Done.
I was the second person to preorder the NW MF04, still not shipped out. Oh gosh…come on Banggood :person_facepalming:
I’m pretty sure they messed up with my change to NW.
Please message me a code.
please msg me the code. I’m interested, depending on price
My MF04 has made it to the UK. If Royal Mail get their act together I might even get it tomorrow Probably not though.