... CE,CEC,ISO 235W Poly Panel,A Grade,High Efficiency, TUV,MCS,UL,CE,CEC,ISO Certified characteristics:1. high- ... frames with convenient mounting-access, for high wind-press and snow-load6. the backside frames are equipped with drainage holes, so ... under 20% decrease within 25 years9. customer-desired packing10. Certificate: TUV, CE, ISO Techinical parameters: maximum power: 230W optimal operating voltage ...