Solar panel: 1. TUV,IEC,CE,UL,CEC,MCS ... producing various types of mono and poly crystalline silicom solar modules from 5 to 280W. The quality of ... UL standards, ensuring the veracity and stability of their power output. Our modules have well performance in searling, ... ,IEC61730, CE, ISO9001,ISO14001Quality Assurance5 years product guarantee for power output more than 90% within 10 years, and 80% ...