1)High module conversion efficiency up to15.5% 2)25-year limited warranty on power ... Monocrystalline Solar Panel, Positive Tolerrance,High Efficiency,TUV,MSC,CE Certified characteristics:1. high-efficient and stable2. take the advantage of diodes to avoid ... aluminum frames with convenient mounting-access, for high wind-press and snow-load6. the backside frames are equipped with drainage holes, so ...