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Just watched some of the video at that link. It uses turnigy Lipo batteries.

No doubt that is a lot of power. I wonder about the water cooling system. The heat exchanger did not look very big, but I’m not really familiar with the power capacity of different sized radiators.

That’s the most impressive flashlight I have ever seen. Thanks ! Haha

It would be a PC water cooling system?

Yeah, a closed loop