... ,CE,ISO9001 certifications 2)Best quality-price ratio Polycrystalline solar panels 220-235Wp 1)TUV,IEC/EN61215,IEC/EN61730,CE, ... voltage operation· The sturdy, anodized aluminum frame allows the modules to be mounted on a variety of standard racking ... overheating due to shaded or defective cells· Innovative, environmentally friendly packing method using pile-edges ensures modules arrive in perfect ...