The CS3W-390PB-AG module from Canadian Solar is made of polycrystalline PERC cells and utilizes a bifacial design to provide up to 30% more power from the rear side. Split-cell construction makes these modules more shade tolerant as well. The CS3W-390PB-AG provides a maximum 390 watts and achieves up to 22.69% efficiency under standard testing conditions when including bifacial gain. The CS3W-390PB-AG is backed by a 12-year product warranty and 30-year linear performance warranty.