220w polycrystalline solar panel

220w poly crystalline solar panel We are Golden Supplierfor 6 years(since 2004) at alibaba.comwe manufacture and supply 1w - 300Wsolar panels.Products information;Product name: 220W Monocrystalline solar panelModel:SF-220WPMaximum Power:220WProduction Tolerance: ±5%Maximum Power voltage: 28.8VMaximum Power current: 7.64AOpen circuit voltage: 36.8VShort circuit current: 8.42ACell efficiency: 15.20%Module efficiency: 13.68%size of modul (wide and high): 1637 x982 x46mmframe (typ, material and thigness): Anodised Alu. alloy frame,50mm thinessnumber of cells: 60pcssize of cells (wide and high): 156mmx156mmWeight per piece: 20kgtype of junction box: PV junction box with TUV certificatecable type and length,connector typ: PV cable, 0.9m Plug and socketmaximum system voltage: 1000V Temperature coefficient of Isc: +0.05%/ Temperature coefficient of Voc: -0.34%/ Temperature coefficient of power: -0.5%/ Temperature coefficient of Im: +0.05%/ Temperature coefficient of Vm: -0.34%/ NOCT (Nominaloperating cell temperature): 47(+2) Wind Bearing: 60m/s(200kg/sq.m) Impact Resistance Hail Impact Test: 227g steel ball fall down from 1m height Quality guarantee: 5 years product warranty and 20 years -20% of power FF(%): 70%---72% Packing:by pallet