Ceiling bounce using the Meteor M43 as a reference. The beam profiles of M43 and MF01 are close to identical, so I believe absolute lumens are sufficiently accurate. Max output is also in concurrence with measurements of other members I’ve read.
Since V1 and V2 have identical beam, relative output is correct. So in my case V2 is slighty less bright than V1 with full cells, but V2 maintains higher output with depleting cells. Both are 219C.
I was just playing around with my new MF01 and after awhile, when I enable Turbo mode, it just turns off randomly and goes into lockout mode. I would have to hold the button 2 sec to unlock it. It happened several times. The batteries are VTC6. It’s not fully charged but the light indicator is red so that means there’s still charge in it.
Does MF01 have any protection mechanism that turns off and enters lockout mode under turbo mode when it overheats or battery voltage not enough?
Never read about it. There is thermal step down, so the light should not switch off or something. The indicator should turn red at 3.4V IIRC. And if I’m not mistaken this means at 3.7V resting voltage, if you go to turbo form there, you will have sag until 3.4V so red light turns on. This also means if you then go to a low output, voltage will rise again above 3.4V and light turns green again.
It sounds like a defect to me, but maybe freeme or anyone else knows more about this?
Actually I think it is because of the low battery. I put in full charged batteries and it does not automatically turn off anymore. Also I think it is more than 8000 lumens when running with fully charged VTC6. I get ceiling bounce of 1,220 lux whereas my Emisar D4 XP-L HI v2 4000k reaches 420 lux for 1st second and drops to 370-380 lux in 2-3 seconds. The D4 should be about 4000 lumens at max output. However, its strange my 1,600 lumens BLF A6 XPL V6 with fully charged VTC6 reaches 200 lux and Astrolux S42 219c 5000k gets 209 lux at startup. The BLF A6 is supposed to be 1440 lumens without sprint bypass mod.
I will do a few more ceiling bounce test to compare with other lights I have coming in when I get them, which includes the Manker MK34, Haikelite MT09R XHP70.2, and Noctigon M43, just to name a few. Yea flashlights are addictive…
Understand it is Spring Festival / CNY now so shipping most likely won’t happen for at least another week or two, but keen on this light if GB price is still available. Thanks.
I was able to pry them off pretty easily with just my fingernails, although it did look like there was a little bit of glue used to secure them in place. As Jason said, they are really only there to provide a physical reverse polarity protection, but if you are careful there should be no issue removing them. A few people have mentioned using flat tops with the disks still in place, but I’d just go ahead and remove them to ensure good contact is made. I’m using Sony VTC6 cells in my MF01.