... 4) UV co-extrusion for long life-span. 5) Light transmission rate up from 25%-88%. 6) Customized colors ... etc. Features: 1) High transparency 2) UV-Protection 3) Light Weight 4) Impact Strength 5) Inhibiting Condensation 6) Thermal Insulation ... ) Easy Installation 10) Enviromental Friendly Applications: 1) Sky light system. 2) Roof light for office buildins, department stores, hotels, villas, stadiums, ...