... . By 2012, the company has successfully produced 8 series more than 80 models of products (5 series of DC systems and ... about 3 years3) Controller:the intelligent module, can last for more than 5-10 years under proper operation. 4) Inverter: the intelligent module ... , can last for more than 5 -10 years under proper operation. Certification:We have passed CE,IEC ...