Right comfychair, that is definately what I was referring to. It is in the listing that you originally linked to at Banggood. Anyway it would be convenient if you could plug into any available usb port at say work, your laptop an out of town relatives house. It’s just not clear about the input. Still looks like a good light without the charger head though.
Oh, now that thing is pretty cool!
I especially like how if you buy it with the light it's $11 extra, but if you buy it separate it's only $8. :D