as an owner…
it was me that pitched up to the night-race with them, and they do indeed take two AA batteries. (I use vapextech ones from http://www.component-shop.co.uk)
They’re good lights for the cash. Given that I tend to experiment with lights a lot, I’ve just ordered some next generation LED ones direct from china than suggest they can pump out about 700 lumen from a single LED.
Should be here in a week or so, at which point I’ll write a review…