Really helpful lenses for soldering, as I can put those on top of my regular glasses. The lenses tend to jump of their slot, which drives me nuts. There are front to back adjustments, which are critical to get the focal plane set correctly for your eyes, or eyes+glasses. I don’t use the LED, it adds too much weight. Since I have a big head I can’t use the stems (too tight) and I wish the elastic was longer. I still think this is a good purchase. It has several features that are absent in other brands/models that I think are critical (back/front focus and angle adjustments, flip up, elastic band, removable batteries = less weight + replacable when the internal battery croaks).