Скачать с ютуб A grade solar panel ki nishaniyan | How to buy A grade solar panels | Longi A grade solar panels в хорошем качестве

A grade solar panel ki nishaniyan | How to buy A grade solar panels | Longi A grade solar panels

if you are going to install solar system at home or solar tubewell this video will help you to identify the original A grade solar panels. I market people are selling B grade solar panels and C grade solar panels some time the called then non costume solar panels or give b or c grade solar panels instead of A grade . so after watching this video you can easily identify the original A grade solar panels. in present system we have Longi 540 watt solar panel