The TÜV Rheinland Shenzhen eyewear lab covers 82 m². Facilities include 11 instruments imported from Italy, including a smart color spectrometer, Optitester automated optical parameter testing instrument, optical bench, haze meter, polarization axis tester, halogen light tester, flame retardation tester, lens durability tester, drop ball tester, frame deformation tester, and frame durability tester.