Wow, a 400+ watt LED flashlight. That is awesome.:bow::bow::bow: Eat your heart out hotwire guys.
Have you ever experimented with the IMS-27's or the Khatod-P7's? They are relatively inexpensive and light weight compared to the various McR-27's. I guess that must seem a little absurd worrying about throw on a 20,000+ lumen flashlight. But since you've gone way past the ordinary anyway.lovecpf