The bulb keeps burning out in my sewing machine, so I bought one of these lights. It works great but the bright light does cause glare. I've found that I can move the light just to the side of the needle and the "side light" works great and doesn't tire my eyes. The stuck-on base that the light goes into is sometimes a concern - the light falls out when I move it. I'm thinking about replacing the base with velcro - just put the matching piece on the bottom of the light. Other than that, I love it.