... processes and factors.Performance Assurance.1) 3 years warranty for PV module, materials and corresponding fittings;2) 90% output of ... ;Other Products and OEMOur related products: solar panel system, solar street light, solar lamn lamp, solar yard light. Please visit our company ... service too, contact us for further info.250W mono solar panelMax-power:250WPower-tolerance:+/-3%Max-power Voltage:30.7VMax ...