Wavelength: 190nm-540nm; Optical density: OD6+ ; Visible light transmittance: 50%; Absorption type; CE Certified：Standard EN 207:2017. Typical protective wavelength: 248nm, 355nm, 375nm, 405nm, 450nm, 455nm, 457nm, 473nm, 520nm, 532nm. Typical Use: laser glasses eye protection for ultraviolet lamp, 405nm violet laser, 445nm 450nm blue laser, 520nm 532nm green laser, and other diode laser machines. Application industries: laser marking, laser engraving, blue light cutting, laser skin rejuvenation, cosmetology, etc. Other lasers with wavelengths ranging from 190nm to 540nm. Outstanding Lens Materials: The lens is made of high quality nano optical PC material, laser from any angles will be absorbed by the lens. High damage resistance, Even if there are scratches or scuffs on the surface of the lens, the laser protection will not be affected. Lightweight & Comfortable Design: Ergonomic design, non-fatiguing for long term wear, PC frame, Impact resistant, durable in use, flank and eyebrow protection, all-round eye protection from splashes. MCWlaser Series Laser Safety Glasses: If you are not sure about your needs, Please contact us and tell us your business and the machine models, our engineers will give you professional recommendations. MCWlaser has a wide range of protective goggles for different wavelength protection and industries.