Klarus HR1 Headlamp. How can something to light be this bright?

Amazing that a headlamp so bright weighs only 1.62oz. I forgot to add in the video that this also has an S-O-S flash mode when you press the LAMP button twice.

AMAZON LINK
Amazon seems to only carry the 600-lumen version in blue right now?
600 Lumen HR1: https://amzn.to/38Iyr7O​
400 Lumen HR1: https://amzn.to/3aWYBqe​

CHAPTERS
00:00​ Intro
00:28​ Unboxing
02:00​ Function
04:00​ Drop Test
04:20​ Water Test
05:10​ Spill and Throw
05:55​ Insights

MUSIC
Blue Nude by Verified Picasso provided by YouTube Studios Music
Tweet Tom Tom by P. Del Castillo used with permission

PRODUCTION NOTES
Edited on Apple Final Cut Pro X
Shot on Panasonic G85