Is the DualSun SPRING panel manufacturing site ISO 9001 certified?

Yes. 

We are proud to assemble the SPRING entirely in France, at an ISO 9001-certified factory. 

The ISO 9001 certificate can be downloaded here (french language only)

Thanks to its unique design combining photovoltaic and thermal components, Spring is specifically engineered for:

• optimized industrial manufacture
• higher-efficiency performance
• a more aesthetic appearance and a lower cost than its competitors