✌ FREEME - ASTROLUX MF01S 15000lm Flashlight Group Buy - ENDED

As long as you don’t pull the batteries out early, you should be fine. When batteries are used in parallel, like on the the MF01S, it’s important that the voltages are exactly the same. So let’s say your charger stops at exactly 4.19v. As long as both sets finish their charge, all 4 batteries will be at 4.19 volt and you are fine.

If you let 2 fully charge and pull 2 out early, at say 4.12 volt, then you put the 4.12 volt next to the 4.19 volt you will get a spark and 2 batteries will drain super fast and 2 batteries will charge up super fast as they try to equalize the voltage within a few seconds. This is bad for batteries and a bigger voltage difference may overheat a spring and collapse it. It just depends on how big the voltage difference is. 2 fully charged and 2 drained could be really bad. A difference of 0.01v or 0.02v should be no big deal.

So just let both groups of 2 batteries charge fully and you should be just fine.

It’s nice to hear that the Molicels are getting wider distribution. I’ll probably pick some up the next time I need to buy some 18650’s

Well dang I appreciate all this input and I probably should have mentioned I’m in the US. Honestly I’m ok with losing a few hundred lumens or so for better capacity. Seems to be a tossup between
P26A’s and VTC6’s at the moment and I’m leaning slightly towards the latter if that difference in mAh is significant enough in terms of capacity/runtime

It amazes me that Flat Tops work, because when you look at the contacts closely you’ll notice they are recessed in a tiny white cup. So how are Flat Tops making contact? Probably the basis for Astrolux ’s alert that only button tops should be used with this light.

Interested. Coupon please?

I took a closer look to figure it out several pages back. Click here.

I’m with JasonWW, in that I’d rather have longer runtime than just a touch more lumens that won’t be readily perceived by the naked eye. Seriously, with this kind of output level, the only time I can imagine someone might want to achieve the absolute maximum possible lumens is if they were going head-to-head against someone else’s flashlight for comparison… and boasting. Useless ego posturing that… has no lasting value at all. Teenaged braggadocio.

Now, output by temperature may be interesting if there’s a notable enough difference. I haven’t watched the video review yet, but is there a notable lumens difference between 4000k and 6500k on the SST20?

Also, how’s the heat management in the MF01S? Can this actually run on turbo for a few mins before becoming too hot to handle?

This was posted earlier. I think Bombay got it from a Chinese review.

I’m not clear on the leds myself. Page one of this thread says it will use SST-20 and XP-G3. I assume the 6500K would be XP-G3 and the other two tints would be the SST-20.

I looked on Banggoods website and there is no mention of XP-G3. It only says SST-20. It’s confusing. They might have changed leds at the last minute.

Maybe Freeme knows.

The light was originally meant to use XP-G3s. As far as I’m aware all the options are SST20s. One of the reviews showed a little over 15000 for the 6500k, a little over 14000 for the 5000k and about 10500 for the 4000k

Got my blue 4k today, very disappointed. Nice deep blue cap but very faded blue body, looks really bad. Shame on Banggood for even sending this out. Can't trust Astrolux brand anymore after this and I know I'm not the first one as someone else posted about this here before too.

Here is TH558’s post. Does yours look like his?

This might be why they are dropping some of the colors. Their anodization company may not be consistent enough. Maybe the black, silver and sand are much more consistant.

It may even be a case of the cap being machined from a slightly different type of aluminum that is causing the inconsistency.

Lol, this is exactly the supercar model. 1/10th of a second makes all the difference.

Now, in lights it’s not feasible to compare 14000 to 15000 lumens. However, since I do have a choice between my 30qs and p26as it’s a no brainer. I charge on the regular. There’s no braggadocio in wanting peak performance, it’s always pushing for the max. That’s what drives innovation.

I kind of like the two tone blue. Makes me want to buy another one in blue. :sunglasses:

Thanks! I think I can manage at least that. I’ll be paranoid and check voltage with a DMM before putting cells in though.

Freeme - thanks for the coupon.

I placed an order for a blue SST-20 4000K. It is out of stock, but expected to ship 2019-08-24. Hopefully I can still get one, even though earlier posts in this thread indicate it is now discontinued.

That’s true about the VTC6, after 50 cycles the VTC6 will hold less charge than the 30Q, this is why the 30Q is better IMO

Looks sort of similar but if I hold my MF01S to my monitor, it looks like a very faded grey blue compared to the blue in those pics. Almost like they really cheaped out in the anodizing process. I think those who got a consistent dark deep blue got real lucky. Otherwise it's a beautiful looking light and looks way better than the images. Very solid chunky feel. Not sure about turbo though, it heats up instantly. Maybe that is the way it is supposed to be to dissipate the heat from the leds and batteries, but it doesn't feel right. If anyone wants my light for $20 less than I paid for it and free shipping to Canada/US pm me.

It heats up quickly because the thermal path is well designed. TA got them to use a super thick shelf so the heat from the emitters can dissipate out rapidly. This protects the emitters and reduces output loss due to heat in the emitters. If you don’t want it to heat up so fast, just run it on default max ramp but not turbo. When used outdoors with some wind, the heat deep fins will keep the thing running real well unless of course if you use turbo, which would require a GT4 size mass to sustain.

Besides the color, why else do you not like this light? I really like mine.

This specs is stated in Mateminco Store in Aliexpress too since they listed it.

They also stated 4000k(CRI95), 5000k/6500k(CRI70).

But they never mention anything about XP-G3.

@SKV89 I thought that might be the case, thanks. So the quick buildup of heat means it is working really well then.

Well, this is my first 4000K light and it is too yellow for me. Not sure I buy the high cri thing. It's kind of weird as I shinned it on my plum tree just now and even though the purple color of the plums looked accurate, the whole area was submerged in a sea of yellow tint. It's hard to explain but I much rather prefer a nice 5000K tint like the Q8 or even 5700K for my eyes. If I can sell this one, I'll order another one in 5700K as the hot spot is not only massive, but it throws so far and stays so bright that it's almost incredible for such a compact light. I know some don't like the circus looking auxiliary lights but I love them, they look great. I also love the whole design of the light, if looks and feels really nice.