Funny you mention cleaning. I just got my second MF01S and it had some kind of grit or gravel in the box when it arrived. I had to pop a couple small rocks out of the cooling fins and the light had some gritty powder that needed to be washed off. Thankfully no damage to the light, everything looks and functions just fine.
And an update about the faint noise coming from my purple 4000k light. The new green 6500k light does the exact same thing and both are working perfectly so I’m sure it’s completely normal.
I’m looking for some info on the MF01S, probably mentioned somewhere but I’m unable to find it — what driver, eg. FET + 5? FET + 5 + 1?
On battery insertion, the flashlight is in regulated NoPWM mode — around how much current (7135 x ??) is it consuming in this mode, and also around how many lumens (I suppose around 700 lumens regulated level, on battery insertion, for the neutral/cool-white 18x SST20).
I am a little confused about how the Auxiliary LEDs are supposed to function. If I turn the first dial so that the green LEDs get brighter the blue and purple ones go OFF. With that dial set to green being bright none of the other have any effect.
Is there only a set amount of current going to ALL of the emitters that is being divided up between them, and my only choice is how much goes to which LEDs? Or am I just doing it wrong? I would like to see all of the color LEDs be maxed out like the green ones are when only those are on.
I ordered an MF01S but I’m not sure what batteries to buy. There seems to be conflicting information about whether it takes button top or flats. Can someone recommend a battery?
I’m thinking Samsung 30Q button tops.
You can technically use flat tops but it can stretch / tear the the 18650 wrapper and insulator from what I’ve seen online. If you already have suitable flat tops and a good soldering iron, solder blobs will work well too.
Just saw your comment about looking for non-PWM drivers. I’m not that familiar with drivers, but I generally test if each flashlight has PWM (my method is a bit crude — I shine the light through a small portable fan blades). I’m not sure how fast the fan blades spin, but for BLF A6 driver or Biscotti or Bistro or NarsilM or Anduril, I can still “see” the fast PWM pattern on lower brightness levels, using this method.
However on some flashlights I tested, I couldn’t “see” PWM, so I determine they have No PWM (or are faster than what I can observe by shining flashlight thru the spinning fan blade).
These are some flashlights I tested using my crude method above, and I can’t “see” PWM on all their brightness levels (lowest, medium to high levels):