I thought I would never use the loupe lights. But since I got my first ones few years ago from Snap On Optics, I have never worked without them. The head LED light is small, light weight, and very bright. Now I don't use the overhead lights from the dental chairs any more when I work on patients. I use the head light from Snap On Optics most of the time because it is way brighter. The batteries with tap on tap off switch is very genius. I don't have to take my gloves off when I turn the light on and off. Everyone at Snap On Optics also very nice and helpful. I recommend Snap On Optics to all of my dental colleagues and anyone who needs loupe lights.
Qdds