FUQIAN Pochromic Sunglasses Men Women Vintage Metal Polarized Sun Glasses For Male Night Vision Driving Sunglass

Hign-concerned Chemical : None Element type : Outdoor Sports Applicable Scenarios : Sport Product Type : Fishing sunglasses Style type : GOGGLE Model Number : S93043 Lens Width : 62mm Lens Height : 39mm Lenses Material : TAC Department Name : Adult Gender : Men Frame Material : Alloy Lenses Optical Attribute : polarized,Photochromic,UV400 Brand Name : FUQIAN Origin : Mainland China Item Type : EYEWEAR Eyewear Type : Sunglasses Certification : CE Use scope : Driving,Fishing,Shopping,Sports,Party Suitable for face shape : Round face,Oval face,Squared face,Long face Dropshipping : Available Wholesale : Available Custom Logo : Available

How to do photochromic test? When you receive the sunglasses,there is a photochromic test black label on the lenses. Put it under strong sunlight,after 30 seconds to 60 seconds later remove the black label and you will see the change of the lens. The stronger the UV light, the darker the colour of the lens.