Another awesome Enderman build 
I’m curious to know why you think the smaller heatsink contributes to lower output? I mean it’s fan cooled….
The LED is being run at its peak, but the higher the temperature it is at the lower the output.
Usually I try to use larger CPU heatsinks, at least ones with heatpipes to move the heat away from the MCPCB faster.
In this build I had to use a low profile server heatsink and low profile fan to keep it compact.
It’s still better than just a passively cooled flashlight body, but not as good as the BXTS13A I used in my previous builds, and far from as good as something like a NH D15 which would be the best possible scenario.
Did you measure the temperature?
Nope, but it hasn’t burnt up so far so all good 
Someone get this man a LEP 
Why? He’s already making lasers from regular LEDs! 
Good job on the build, Enderman!
Maybe I’m still too newbie to understand or I just prefer flooders, but…
what is the point of making such flashlights?
Except for fun.
Too large for short distances. And too focused light.
For a long distance illuminates a small point and you need to use a binoculars to see anything.
There are actually a small minority of BLF’ers that can use a good thrower like this. For the rest, it’s just a toy. I don’t have any use for a thrower, but I’m definitely impressed by the reach of these things. I’m not a flooder either, though. I prefer a medium size hot spot and a decent amount of corona, with very little spill. Some of my favorite lights are TIR.
I’m working on one!
Thanks! <3
Yeah mostly for fun, it’s like a fat laser with a very visible beam that isn’t dangerous to the eye and can’t cause fires.
At 1 or 2km the spot is large enough to light up a house, so even though you can’t see very many details from that far away you can still clearly tell that there is a house, without using binoculars.
Your vision is better than you think, look outside, you can still see stuff at 5, 10, 15km away.
And I might consider buying it 
Well, not yet…
And many light-years away. too!
hahaha true!
Nice!
A flashlight with a Noctua fan...
It would be interesting to see how much relative output the LEDs looses over time due to heating up.
You monster. I’ll have to keep my eye out for a build thread 
Ah true, I could take several lux measurements over time.
When I did the intensity measurement I waited a few minutes before taking the final reading.
It’s impressive to see what you can do with only 3 screws.
Isn’t it this one ? : Received the second component of my future project
Yeah I haven’t had time to machine the piece of metal I need to hold and cool the crystal and laser.
Hopefully once school starts in september and i have access to the machine shop again
That’s pretty slick! Like a laser beam!
Thanks
I like fat lasers
What’s the power output on the led, like volts/amps?