... Solar Panel 1, Solar Cells 30-270Wp 2, ISO, CE TUV,CSA,KAS centifications 3, 25 years of life-span Mono PV ... .Glass: the low iron tempered suede glass (also called the white glass), 3.2 mm thickness, light transmittance more than 91% at the ... ability.TPT:the back cover for the solar cell is white fluorine plastic ,have reflection action of sunlight ,so it can ...