... 3)TUV,UL,MCS,CE,CEC,ISO 235W Poly Panel,A Grade,High Efficiency, TUV,MCS,UL,CE,CEC,ISO Certified characteristics ... material5. attractive, stable, heavy duty anodized aluminum frames with convenient mounting-access, for high wind-press and snow-load6. the backside frames ... and freeze or even bend the frame.7. pre-cable with fast-connecting systems8. Under 10% decrease of output power within ...