Model Number: MSP255P Brand Name: macsun solar Key Specifications/Special Features: Certifications for incentives, quality, environment, health & safety *ISO9001:2008, ISO14001:2004, OHSAS18001:2007 *full member PV Cycle Association AISBL product certifications *quality and robustness: IEC61215:2005 *safety: IEC61730 -1/-2, MCS, CEC, UL *resistance to salt corrosion (salt fog): IEC61701:2000 *resistance to ammonia fumes: ammonia resistance test25 year linear power guarantee commercial *12 years on material and manufacturing defects performance *Power not less than 90% of power peak during the first 12 years *Power not less than 80% of power peak during the subsequent 13 years