... solar panels 1,Using high quality Motech solar cell. 2,Certificate: IEC,TUV, CE and RoHS LDK 230w Polycrystalline solar panelsMaterial ... : Multi and Poly CrystalTempered glass Mounted with tough aluminum frameWorking life: ... or off- grid solar power station.2, Commercial and industrial building roof-top systems3, Residential roof-top systems4, Any ...