
1.74 Spin Photochromic Optical Lenses Hot Sale. High Refractive Index: 1.74 refractive index lens reduces thickness and weight for comfortable wear. Superior Spin Coating: Adopts spin change technology for uniform color change without background color. High Transmittance: Transmittance exceeds 95% ensuring clearer vision and low dispersion. Customizable Power Range: Power range: Sph 0.00~-15.00, 0.00~+6.00, Cyl 0.00~-4.00. Multiple Coating Colors: Available in Green and Blue coating colors to suit various preferences. Comprehensive Certifications: Certified with ISO9001, CE, and FDA standards for quality assurance. OEM Service Available: OEM service provided upon submission of specific customer requirements. No MOQ Requirement: No minimum order quantity required, though small orders may incur extra delivery fees.