https://en.nencom.com/products/solar-... The exceptional performance of the modules Panasonic is achieved thanks to the patented technology HIT® — Heterojunction with Intrinsic Thin layer. The traditional layer of monocrystalline silicon is surrounded on both sides by ultra-thin amorphous silicon layer, which reduces the energy losses at the borders of the cell especially in high temperatures. More https://en.nencom.com/products/solar-...