A singh wrote a review of Petzl Zipka 2 Headlamp on August 19, 2012
I have had multiple types of headlamps since the mid-90's. From the yellow giant battery pack halogen to the small led with a strap and the Zipka is awesome. Zipka is what it is... a small, compact light that illuminate what is right around you. If you need a headlamp to make it seem like daylight this is not your lamp. But if you need something that you will want to carry around with you, take backpacking, wear for safety while biking, or working on your car- this is your lamp. I can't give it more props in this little comment box.
One downside has been noted in other reviews- it is not as comfortable as other lamps (I agree). But I have never had the problems other reviewers have had.