Zhejiang Koly Energy Co., Ltd is one professional manufacturer toproduce Wafers, PV Cells, Solar Modules from 3W to 310W.*** Auto-soldering production line makes sure the products withbetter quality and apperance*** Chinese Pacific Insurance Co., Ltd provides the qualitywarranty to "Koly" modules*** The certificate avaiable: TUV/ IEC61215 and 61730/CEC/ CE/ISO9001,14001 and OHSAS18001.etc*** Supply and design the off-grid and on-grid solar system*** Supply Solar Charge controller and Small home system*** High quality with very competitive price!Hope to your get your oder!