Silfab 490HN Solar Panels - The Silfab 490 watt monocrystalline solar panel provides maximum power density and superior performance. Lightweight and durable, this 156 half cell solar panel has a highly reflective white backsheet and a durable silver anodized aluminum frame. High efficiency, XL monocrystalline module High reliability with a positive performance tolerance -0/+10 Wp Robust frame