421.9W! High-efficiency PERC PV Module of Tongwei Solar Breaks the World Record

In May, 2018, the high-efficiency PERC PV Module innovated by Tongwei Solar has broken the world record with the maximum output of 421.9W. The new type of PV module has been certificated by Chengdu National Testing Center of PV Products with a conversation efficiency of 20.7%.
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