Varioflex is a lens technology in which the lenses automatically adjust to the weather. The self-tinting (photochromatic) lenses on the Altona VM spare visor react to UV light. When exposed to radiation, chemical elements "open up" and create a comprehensive darkening effect. When the light intensity decreases, the chemical elements close and the lens becomes brighter again. This process takes seconds. The Altona VM replacement visor is also mirrored, protecting against glare. It provides 100% protection against UV-A, UV-B and UV-C rays.
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