Has anyone tried these? They are amazing...They give you the ability to open your tent with the LED's on, and it looks like just bright natural light. Very cool. They are offered in clip-on style for us prescription glass wearers, and normal sunglass style for those who don't need glasses for correction. I believe they will also make them in your prescription. Carl Ziess optics. Check my picture under Introductions in Hello from Kentucky, US. The natural looking picture was taken just holding my glasses in front of my little cheap camera. Truly amazing, and they save your eyesight...Check them out. Peace. Doug