Stealth Coverlite spectacles are the most-comfortable overspectacle which you can buy; thanks to the presized size of the temples, it is unbelievably comfortable to use them over your private corrective lenses; it is the lightest overspec on the market; Coverlite Orange 550: 100% blue light absorption 380-550nm, UV absorption 280-380nm 99,99%; Designed for special applications such as surface inspection, mechanical work, ultra-violet light, vulcanization, work with curing lamp, dentist and medical applications. Coverlite IR 5: UV absorption 280-380nm 99,99%, IR light absorption 780-1400nm 97%, Blue Light absorption 380-500nm 99%; Designed for special welding applications; Overspecs for welders with prescription glasses or spectacle for visitors in Welding environment