For the record, I would never strap an off-brand, high power chinese knock-off lamp to my head.
It's one thing to have your MagicShine battery pack burst in the flames (which happened, and necessitated a recall by GeomanGear), because that's strapped to your frame. A head lamp... seems risky.
If nothing else, I bet it keeps you warm in the winter.
But that's just me, and what do I know.
I heard this before from others that their great Chinese make light went poof into flames, fortunately mine just died, but they wouldn't replace or fix or return mine.
Did your fire cause any damage? I bet Geoman didn't pay for that either.
Lets go and buy the cheapest Chinese high power light we can find because we all like a little excitement in our lives, like a fire, maybe even melting carbon handlebars or frames, or just scorching your $3,000 bike's paint job, no big deal, heck that $3,000 carbon bike was probably made in China anyways so let it burn.