... 190W Monocrystalline Solar Panel, Positive Tolerrance,High Efficiency,TUV,MSC,CE Certified characteristics:1. high-efficient and stable2. take the advantage of ... 20% decrease within 25 years9. customer-desired packing10. Certificate: TUV, CE, ISOTechinical parameters:Model TypeGY-170MGY-175MGY-180MGY-185MGY-190MGY-195MGY ...