{"product_id":"for-agv-k5-k5s-k5-s-k3sv-k1-k1s-compact-st-motorcycle-helmet-visor-lens-shield-glasses-full-face-pin-accesorios-para-moto-casque","title":"For AGV K5 K5S K5-S K3SV K1 K1S Compact ST Motorcycle Helmet Visor Lens Shield Glasses Full face Pin Accesorios Para Moto Casque","description":"\u003cbr\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cdiv\u003e\n\u003cimg class=\"detail-desc-decorate-image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sf55a2445dbcd4fe29a35adf5689ad836E.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" slate-data-type=\"image\"\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sf5f868b47ff64bb5908947b79b6b8f3aQ.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_media\"\u003e\u003cdiv class=\"video-container-5000236796583\"\u003e\u003cdiv class=\"detail-video\" id=\"5000236796583\" data-previewurl=\"https:\/\/ae01.alicdn.com\/kf\/Sff98db66b57242c4b2d5319f86c156c92.jpg\"\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cp\u003e\u003cspan style='color:rgb(0, 0, 0);font-size:14px;font-family:Inter, -apple-system, BlinkMacSystemFont, \"PingFang SC\", \"Hiragino Sans GB\", \"noto sans\", \"Microsoft YaHei\", \"Helvetica Neue\", Helvetica, Arial, sans-serif'\u003ePrinciple of Photochromic Lenses  \u003cbr\u003e1. UV-Triggered Tinting: The lens contains light-sensitive materials like silver halide or spiropyran-based compounds, which undergo reversible chemical reactions when exposed to UV light. This causes the lens to darken, blocking intense light and absorbing UV radiation.  \u003cbr\u003e2. Transparency Restoration: In low or no UV conditions (e.g., indoors), the chemical structure reverts to its original state, restoring transparency for clear vision.  \u003cbr\u003e3. Self-Adjusting Mechanism: The entire process is automatic and dynamic, balancing optical clarity with light protection without manual intervention.  \u003cbr\u003e\u003cbr\u003eSummary: The lens achieves \"darkening under light, transparency in darkness\" through molecular structural changes in UV-responsive materials. \u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S299486a90df44007b7be0294d0b6869bj.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd9f5ab9c8680428ea0332b157734d367g.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3a9f4a19b0bf41b09d97f56e2b274e7ag.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S7fda8b7bc2b7453c87cccdd5ebb336b0g.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S6531d219e265425489f31071eb527e41t.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Se94203a19b07497a82ceaee9e71dfb9fF.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S4ae11e7a4305496abcb8f33060e57cd5h.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0cd4c7d382ce4da1bf911b1a9a79e28bn.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S556c829442514e77a60de2ff37088c97r.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sc7fcd08267764205a438156b62a8f82fh.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S4c9ec277be53461186bf7b5a9e7b5d3e8.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S2c8007a7b8c840cb9dbf08a9a6b25245I.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0b013aa54b284f43a48187e33344d148U.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sff2b29901b06422d8daee15769687f39E.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sbde61a52f1be4b60ba2afb1d497b9df0Q.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S2c23af2bb45c4d1fbf4c91c3f13e6870W.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S97537b7daa7d4777b94c6094fe639b0fU.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Se79e3512ac3c46c7a7e656e343ed5833L.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S4a38b74f935f4ca998d77422b9e0a85fS.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e","brand":"HVA MOTO Store","offers":[{"title":"Anti-fog","offer_id":43920444882987,"sku":"12000040330141816","price":28.3,"currency_code":"CAD","in_stock":true},{"title":"photochromic 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