260W, 265W, 270W, 275W, 280W, 285W, 290W, 295W, 300W, 305W, 310W Solar Panel: 36V Monocrystalline 260-310W 156*156mm Solar Modules 1)Full automatic welding equipment. 2)Quality insurance. 3)Certificate: ISO, CE, RoHS, IEC, TUV. 4)OEM accepted. Module Size: 1957*992*50mm Cell Description: 6*9 series connection Warranty: 90% of its nominal power after 10 years 80% of its nominal power after 20 years