It looks like S2 5A3 4000K option has been added with a nice 6600lumens of 4000K light with a tint that is not green dominant (close to the BBL but not over it). Sandstone in 4000K, sounds really good.
I don’t think you are going to have much luck improving the situation. I purchased another one of these(latest batch) and it does the exact same thing. I have stretched the springs on both of mine a couple of times. It helps a little for a day at most and then it is back to a good tap on the tail cap turns it off. Mine seem to settle in to a certain spot and don’t seem to get worse after that. A quarter inch tail stand drop will turn both mine off.
While using mine, the only time the problem occurs is when I try to tail stand it. I either have to be gentle or I have to turn it back on after I set it down. Otherwise, I can shake it and slap it around pretty good, from all angles but the tail, and it works fine.
I have now taken this out of the “Problem” category and put it into the “Characteristic” category. The M43 is awesome except for this one characteristic.
I can’t measure the output yet because it’s too bright for my light box.
I tried to get a neutral density filter to tone it down for measurement, but apparently it was not, as promised, made of glass… and it melted within five seconds of trying to measure a triple XP-L. So, I’ll have to either get a better filter or find some other solution.
I got 7700 lumens the other day and little over 8000 yesterday… these were with just with whatever state of charge was in the batteries at the time- most likely over 4.1 volts. This can’t be right. Most lights I’ve tested at 30 seconds I’ve been under the manufacturer rating by a little or a lot.
BTW what is the candlea number you get at 1 meter with fully charged cells?
My meter for example seems to under read a bit compared to what others get but for the 219B-V1 I get 19.5Kcd at 30sec, which of course right on with the 20Kcd rating, but again I am sure someone else can easily get 21-22Kcd with a meter that reads higher than mine. Others hame measured even 24Kcd for the old 219B version.
So I do my cd rating at 20feet and do the lux to cd converter online for my 1m rating. Some throwers I measure have too tight of a hot spot to measure at any less. My fully charged measurements have been: 7644 lumens with 33,593 cd. There’s a beam shot of it in my latest video review.
Does anyone have experience using this flashlight for videography 219BT LED, 90 CRI? How well did it do? I am also wondering how do lower outputs affect CRI and color rendering? Should I expect maximum CRI only when running it at maximum output?
I will definitely get this flashlight, but I am debating whether to go for the high CRI version and also use it for videography, or to just go for the higher lumen and throw version and get something else for videos.