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Wotechsolar is certified under the ISO 9001-2000 Quality Management System and in the process of obtaining the ISO 14001 Environment Management System and the OSHA 18001.

Our solar modules are strictly manufactured according to the standards of IEC61215 and IEC61730.

With advanced technology and first-class production equipment, we guarantee each module with high quality and high stability output power. The output power of the modules exceeds 90% within 12 years and 80% within 25 years. Our products are backed by USA CHUBB Insurance which covers the solar module's General Liability and Errors or Omissions Liability and Shanghai Alltrust Insurance Brokers and Risk Consultants. 



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