Electric Styles Light Up El Wire Glasses (Green) Our glasses come with a black frame and clear lens so they are perfect for night time. Our 3-mode battery pack uses 2AA batteries, giving you 8-24 hours of light per set of batteries! The side of the glasses have an Electric Styles logo, which means it comes with our 60 day warranty. The battery pack can be put inside your pocket or clipped to your pants/shorts. Don't buy cheap knockoffs that use 2 watch batteries. They often only last 15 minutes before dying!