The JA solar 345W Mono PERC Half Cell solar panel – JAM60S10-345/MR is a 345W 120-cell monocrystalline module with Half-Cell technology. JA Solar offers a high-efficiency module with PERC cells that, thanks to its half-cell configuration, offers high output power, better temperature coefficient, less efficiency loss in the face of shading and greater resistance to mechanical loads. JA solar panels have a 12-year product warranty and a 25-year linear power warranty.