Where do I write the check out to? (Just kidding my wife would kill me.)
Edit: would be a great recommendation for all the people asking for a āself defense flashlight.ā āBuy this thing, itās a medieval mace with +3 fire damage.ā
Isnt lights like this meant to just shoot tons of light like crazy vs throw very long? not really like throwers even tho this one is gonna go for like 1km it still impressive but u wont get that tight beam tho. Also u can take a swing at someone in case self defense would be needed lolā¦ Im curious how the final version will be like and if they ditched the fans it means they had same issues olight hadā¦
If neither acebeam or olight can manage to produce lights with active cooling then it seems something is wrong no? because waterproof fans etc exist so i dont get it ?
I doubt they can go fanless, even the x9r if i run for almost 3m it gets quite hot at the head, so that much more lumens is almost worthless if they go full passive since that light will produce more then what 220W of power ?
Maybe they can bundle one of those misting fans with each light. Put some ice in the bottle and every time it gets too hot you just spray it a couple times.
Edit: That was a joke, in case anyone thinks that was serious.
But i dont get it, acebeam showed earlier the prototype with 3 fans, same did olight so its weird if also they now ditched the fan design, the light will cost alot more then x9r so for that much lumens i think active cooling is a must if they want longer runtimes on max then a few min ā¦
makes sense when u think about it, such fans even if 3 in that head can they really push out that much heat fast enough? probably notā¦ but who knows.
Not at all. Based on my calculations, it just might be able to do 40k lumens continuously. Itās kind of at the limit.
Now 30k continous is definitely doable.
So if 40k lumen is borderline, I could definitely see it doing 40k for at least 5 to 10 minutes, then step down to 30k for the rest of the batteries life.
Even this is a huge step up from the 7k continous lights we currently have.
But once the batteries drop half their capacity, the volt isnt too low too keep up that much lumens? im skepticalā¦ my olight x9r i cant do 2 highest modes once battery shows 4 bars out of 8 leftā¦ ?
Considering the XHP70.2 thermal resistance of 0.9CĀ°/W and a max Tj operating temperature of 150Ā°C, with 29W input, and 23Ā°C ambient, this would mean the heatsink could be allowed to rise 100Ā°C above ambient, yes? Though the LED output would be reduced to 85% of the rated maximum at this Tj. To maintain 85Ā°C Tj, the heatsink would only be allowed to rise 36Ā°C? This is probably overly simplistic. Will dig into the requisite math more later.