Junction Box-qc 091721-B

It seems complicated but simple actually, and it also embodies a deep understanding on photovoltaic. The design of "One board three boxes" reduces the connection of some unnecessary cables and ribbons, and the more, reduces the power loss caused of lines . Meanwhile, it devides "hot spot" effect into three, thus reducing the damage from high tempreture. Safe and reliable, low cost. QC Solar, Innovation everywhere!