5 years quality guarantee;
high performance cell

model power: 235wp

model power voltage: 30v

model power current: 7.94A

open circuit voltage: 36.79v

open circuit current: 8.4A

warranty: 5 years on materials and workmanship

                10-year power output not less than 90% and 25-year 80%

certificate:

        iso9001, golden sun, TUV, IEC61215&61730,MCS...