... , Competitive Price, Fast responding after-sales services 6 inch Poly-crystalline Solar Panel, 260W - 280WSeries number: TM260P-72 - TM280P-72 Manufacturer: ... irradiance conditions.72 Back-Contact polycrystalline Si solar cells (approx. 20%).ApplicationsCommercial/ industrial building PV solar roof-top off-grid systems ... ,Low lron,Tempered Glass 4.0mm 6 inch Poly-crystalline Solar Panel, 260W - 280W