Work safely and easily in dark environments with the new Bifocal version of the Light Vision safety eyewear. Choose from 3 Diopter Powers, 1.5. 2.0 and 2.5. Hands-free Swivel Adjustable LED lighting is Ultra Bright, with Long Battery Life (50 hours minimum). User-replaceable batteries included. Cushioned brow, nose bridge and temple ends. Clear Anti-Fog Lens keeps vision clear in tight spaces. Meets ANSI Z87.1-2003 safety standard.