... lighter than double-glass.4.Free from defects for 5 year with regular use, maintain more than 90% of ... Sheet from Toyo,Japan,super water resistance type (5 layers),longer life time.9. Enable coverage with ... strong sunlight(1000 W sunlight per square meter,1.5 A solar spectrum distributing) and 250c solar cell ... , and that of crystalline solar cell is -0.5%/0c. That means, when the module is worked ...