What is UV light ? UV light is an electromagnetic radiation with a wavelength from 100 nm to 400 nm, shorter than that of visible light but longer than X-rays. It is present in sunlight. How does UV light impact on human health ? Skin damage
Eye damage Strong and penetrating "Blue light " in wavelength 380~400 can reach retina and cause various eye problems (like cataract, macular degeneration etc). Speciality about patented UV400 film * Cut off whole wavelength UV light ,provide 100% protection. Avoid skin aging and darkness , decrease skin cancer risk. An easy test to see the difference with and without UV400 films * Use UV light to flash on counterfeit detection area, you'll see UV fluorescence |