... Warranty:25years Power tolerance:0-3% DPL220watt high efficiency solar panel price list 1.Features: High conversion efficiencyLow power tolerance of 0~+3%Low ... warranty:10 years:90%,25 years:80%ISO 9001:2008(Quality Management System) certified factoryIEC61215,IEC61730 ,MCS CEC certified productsTUV,CE ...