EX-250M(156) High-quality,High-efficiency Certification: TUV,IEC,CE,UL,MCS,ISO 25 years limited warranty on power output EX-250M(156)High-quality,High-efficiencyCertification: TUV,IEC,CE,UL,MCS,ISO25 years limited warranty on power output90% power output assurance for 10years80% power output assurance for 25yearsThis module has an excellent positive power tolerance peaking up to +5 Wp.The durable ...