... Solar Panels 1) poly and Mono crystalline solar panels 2) TUV, IEC, CE, ROHS. ISO EMC Certification 3) 2 years warranty energy, sun solar, photovoltaic, solar photovoltaic, pv, solar panels, solar ... and high reliability, and within the service life of 20 years with an output power reduction not ... 5 years. Power warranty: Maintain more than 90% of minimum rated power for 10 years. Maintain more ...