Right, all flashlights use convection (unless they are in a vacuum), but itās relatively weak. Using a fan is called forced convection. It greatly speeds up or helps the heat transfer.
Even though other MS12 users show air entering one side and exiting the other, itās not a straight forward flow. The fan style they are using just seems odd. Iāve never seen that style of fan used like this before. The only thing close was the FB1 below.
In fact, here are all the airflow patterns on the active cooled lights I know of.
The prototype Olight X9.
Iām guessing on this Microfire due to lack of data.
The protoype X70. It had 3 fans so it looked like it had 3 dividers using 120Ā° of the diameter. So it had 3 inlets and 3 outlets.
The new version of the X70 has the external fan and ālooksā like it has air blowing across the exterior.
I am still guessing on the MS12 design. Their fan style and layout is very odd. Iām guessing they are using a divider to get the air to go in one side and out the other, but itās not working very well.
Used in laptops a lot.
Itās a centrifugal fan. Picks up air in the centre and blows it out the outer perimeter.
It basically spins the air thatās in there and flings it outward.
Very effective.
Vacuum cleaners work that way too.
You misunderstood me. Iām familiar with all fan types, but centrifugal is not often seen inside flashlights. The FB1 uses a centrifugal, but itās orientated differently.
Yes the type of fan in the middle of the light makes no sense to me, it doesnt seem like its magical just sucks the cold air from one side and throws out all the hot air on the other side, if it was that easy other light makers would have figured that out long before imalent, it doesnt take a rocket scientist to figure that out.
Would be interesting see the inside of the head if there are air channels or something to get the flow out somehowā¦
Imalent should be held responsible if this flashlight burn someone accidentally. To be king of lumen it must also take care of user safety. I canāt imagine those who has less flashlight knowledge paying full price and get themselves a dangerous tool. If buyers think MS12 gets too hot in such a short time and request return for refund, would Imalent accept return? Sport car that can accelerate very fast will also brake to still very fast, itās safety that is utmost important.
I think Blippi at ASF got 71c for his heat test at the head, kinda in the middle of the 3 tests I did. Iād be interesting to see if that was from a full charge.
Bridgtec commented his fan was quiet which seems odd.
Iām not convinced, that Imalent MS12 can be really worth more than 400$. I saw video with turbo mode and saw the other videos with Professional Police Flashlight and I can write - this one can be much better than Imalent DX80, but not for this price.
Worth or value is all relative. If itās not worth $400 to you that is fine. It is worth it to some people, but not others. This is just the way things are.
Yes, I know that is not flashlight for daily use and you can always put there some Swarovski crystal and sell it for 1000$. I just only wonder, who buy flashlight like this one.