Got the headband for my 400L, it's comfy and adjustable, overpriced at $20 but they're not mass producing these things. Using the 400L for night walking the dogs is incredibly overkill. But now I blind the hell out of fellow walkers, attacking dogs, vampires, guerrillas, my neighbor, whatever I come across on my street.
Dinotte also threw in great goodies, lens kit, extension cable, extra battery straps. Thanks Dinotte!
Just need to setup a wingnut system, bringing out a phillips to swap mounts is no bueno.