Fengjun pickup truck generator test report

The Great Wall Wingle is series of manufactured by the Chinese company (风骏) since 2010. Originally launched as a single pickup model, the model was since updated and facelifted multiple times with different variants offered at the same time. [pdf]

Photovoltaic panel plus magnifying glass

The short answer is, yes, you can use a magnifying glass on a solar panel to increase its efficiency. However, like most things in life, the devil is in the details. The key is to use it correctly. [pdf]