... response and delviery time Certificate:TUV,UL,CE,CEC,MCS Poly-crystalline Solar Module Major Featuresa) High-efficient solar cells ensure high performance ... cell performance.d) Stable, heavy duty anodized aluminum frames with convenient mounting-access, for high wind pressure and snow load ... -spot effect.f) The backside of frames is equipped with drainage holes in order to eliminate the risk that rain ...