1.Monocrystalline solar panel 2.max wattage: 180W 3.Certificate: TUV,IEC61215, CE and ISO9001 4.toughened glass,EVA glue Solar panelUses the good ... keep the color for 25 years Good quality mono-silicon solar battery pieces, has the high-efficiency and long life High ... with no lead, anti-corrosive, antacid and anti-alkali The frame is made of aluminum-alloy, the surface is filming, has ...