... warranty energy, sun solar, photovoltaic, solar photovoltaic, pv, solar panels, solar panel Specifications 1) polycrystalline / Mono- crystalline solar panels/ Solar panels/ solar modules2) TUV, IEC ... warranty: Free from defects in material and workmanship for 5 years. Power warranty: Maintain more than 90 ... % of minimum rated power for 10 years. Maintain more than 80% of minimum ...