... lifespan. 10 firsr years-90% performance. 15 remaining years--80% 230 SOLAR PANEL CE,IEC,TUV,UL Certificates GY-230P Characteristics MAX-POWER230WPOWER ... through Msn, mail or any way you like, thanks.GY solar founded in January 2007, Located in Jiangyin Jiangsu, and ... With a advanced equipment and excellent technological employees, GY solar annual production has been 50MW. GY 230W poly solar panel