solar glass 1, ISO9001and TUV Certificate 2.thickness:3.2mm 4mm 3.Transmittance:>93.68% 4.Low Iron:<120pp solar glass Extra white,Tempered, Low Iron,Smooth / Pattern,AR Coating. AR Coated Solar glass is used the encapsulation of solar modules(Panels,Cell). It has a transmittance, controllable energy-saving power generation and it does not need fuel, no exhaust gas,No waste heat, no waste residue, ...