Definitely no overheating nor stepdown!
But sure overweighting!
I can confirm: this guy is a sap, and needs to be deleted! 
Butt wait! The other one is obscured on the other side.
This is a limited time special offer only in B. C. stores with qualifying purchase of Diet Coke.
Locutus of Mag.
This is perfect.
I’m holding out for the 4 cell version.
Wouldn’t it be better if he used loctite instead of a flimsy headband?
I would like to suggest, titanium screws. Haven’t figured out how to sleep (yet).
Maybe attach only some (quick release) clamps to your head.
The aliens, as seen on Discovery Channel, used 5D or 6D Maglites.