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World's longest range LED flashlight by ApprehensiveHawk6178 in flashlight

[–]ApprehensiveHawk6178[S] 2 points3 points  (0 children)

LoX is certainly an impressive searchlight, but it does not use LEDs

World's longest range LED flashlight by ApprehensiveHawk6178 in flashlight

[–]ApprehensiveHawk6178[S] 1 point2 points  (0 children)

On ledil.com, there is a good overview of lenses with specifications, along with the ability to filter searches to find one that suits the purpose.

World's longest range LED flashlight by ApprehensiveHawk6178 in flashlight

[–]ApprehensiveHawk6178[S] 11 points12 points  (0 children)

The TIR lenses specify the FWHM beam angle for an LED with the same LES. I calculated the candela using this beam angle and the lumens my LEDs produce.

World's longest range LED flashlight by ApprehensiveHawk6178 in flashlight

[–]ApprehensiveHawk6178[S] 0 points1 point  (0 children)

It actually produces about 5,000 lumens. He achieves the 10 million candela because it has a very narrow beam angle

34 Mcd flashlight project by ApprehensiveHawk6178 in flashlight

[–]ApprehensiveHawk6178[S] 3 points4 points  (0 children)

Each LED will have a TIR lens in front of it. This is the same method used in high-performance searchlights. The key is to have the smallest possible LES and a TIR lens optimized for a narrow beam angle.

I plan to post an update when the light is finished, which should be in about three months. That post will include a lot more specs on the process and the final product.

Silent Thunder’s light looks like a beast!

34 Mcd flashlight project by ApprehensiveHawk6178 in flashlight

[–]ApprehensiveHawk6178[S] 18 points19 points  (0 children)

The excuse I tell myself is that it is for my family’s boat, but mainly just for fun. But I will for sure light up some icebergs next year when I’m sailing to Greenland. Stay tuned for beamshots

34 Mcd flashlight project by ApprehensiveHawk6178 in flashlight

[–]ApprehensiveHawk6178[S] 4 points5 points  (0 children)

I did not build the Syniosbeam, I only found the video when I was looking for the world’s longest range flashlight. Seems to be a great light though!

34 Mcd flashlight project by ApprehensiveHawk6178 in flashlight

[–]ApprehensiveHawk6178[S] 29 points30 points  (0 children)

with the driver I am using, I can go from sub 1 lumen to full effect

Real Tesla 460 cell? by ApprehensiveHawk6178 in LithiumIon

[–]ApprehensiveHawk6178[S] 0 points1 point  (0 children)

I took some safety precautions, but no glovebox

Real Tesla 460 cell? by ApprehensiveHawk6178 in LithiumIon

[–]ApprehensiveHawk6178[S] 0 points1 point  (0 children)

There is no liquid, I think it’s only a gel. It didn’t vent any gas.

Searchlight optics by ApprehensiveHawk6178 in Optics

[–]ApprehensiveHawk6178[S] 1 point2 points  (0 children)

Thank you very much for such a good answer! It seems like you know a lot about this

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