Hey, I don’t say one is better than the other. Everybody has to decide on their own. 
Is there a way to know if the MF04S has thermal output drop like the MF04? I like how it looks and the fact that it has a boost driver and lower price than the GT70, but dropping to 60% is way too low.
I haven’t bought any big light this year, but my money is most likely on the MF04S’ side.
Interested in MF04S NW thanks.
I will touch on that after sample arrives.
You got mail.
I do not got the code yet. It is available?
Is this still the case does anyone know?
Website shows Jul 16.
BLF GT CW vs Astrolux MF04 CW.
Lux reading at 10 meter distance throw.
Both flashlights with XHP35 1A D4 bin emitters.
Wow, I did not notice Astrolux made a XHP70.2 version of the MF04!
I am interested in one.
May buy it for it to be the best high power thrower ever.
Interested. Thanks
Interested Thanks
Does anyone know the difference in reflector size and lumens?
Which has a better quality reflector?
According from my test,
Mf04 xhp35 cw 2000lumen… blf gt cw 1700 lumen…
I have not taking lights apart… my gut is telling me astrolux have better reflector quality…
Bravo! 
freeme, as far as you know are all 04’s still on track to be shipped by the end of this week? Thank You
Same size reflector.
Interesting. MF04 is Boost driver at 2.7A and GT is Buck driver at 2.5A. Maybe the Lumintop is using a D2 bin CW emitter instead of a D4?
I think both are supposed to be the same D4 bin xhp35-HI. I wonder if that 0.2 extra amps is giving the Astrolux a bit more output?
Each emitter bin from Cree has a 14% tolerance and we are seeing a 16% difference here. It’s probably a combination of the extra amperage plus variations in the particular emitter. I wonder if multiple samples would even out to show the Astrolux having a slight edge only from the 0.2A extra.
BTW, the extra 0.2A amp should only be good for about 50 more lumens.
I think try to measure at 20-25m. I tried to focus my GT and in stock form it has 900 kcd at 10m and from bigger distance it was even worse. After focusing I got 1170 kcd at 25m and from smaller distances it was worse. It was looked worse hot spot at distances under 20m but at high distances it was far more better with naked eye also.
Not sure why… maybe blf gt is designed for max intensity… mf04 hot spot is bigger than blf gt…
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.