Our factory specializes in manufacturing solar panel both mono and poly. And our solar module have CE,TUV,IEC,CEC,MCS,UL. CE,TUV,IEC,CEC,MCS,ULSpecification ... Degree)-40/+85 (Celsius Degree)Max. System Voltage1000V DC Mono solar panel 235W CE,TUV,IEC,CEC,MCS,UL