It's a headlamp. It seems to work. It's small and reasonably priced. It's very similar to my old one from BD, except it's got 2 LEDs not 3.
However, BD has added A PHILIPS SCREW to the battery compartment. There's a small screwdriver in the package. Really? Am I supposed to carry a special screwdriver at all times on trips so I can swap out batteries in a headlamp? Seems like an afterthought to fix a design screw up.