Solar systems are expected to stay outside for decades. Rain, humidity, dust, heat, sudden weather changes, everything keeps hitting the system year after year. Most people pay attention to the solar panel itself, but many long-term issues actually begin in smaller components that usually go unnoticed.
The junction box is one of those parts.
From the outside, it looks simple. Just a box...
When people think about solar panel performance, the focus usually goes to efficiency, wattage, or the solar cells inside the module. Those things matter, of course. But there’s another component that quietly plays a huge role in how long a panel actually lasts: the aluminium frame.
A solar panel stays outdoors for decades. Through heat, rain, humidity, dust, strong winds, and constant...
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