Some of the largest manufacturers of panels in the world are Jinko, Trina, Canadian, etc. In other words, they sell more panels than any other manufacturers. Therefore, they provide decent quality panels at the most competitive price due to their level of automation in manufacturing and economies of scale. That is the reason more residential, commercial and solar farm developers buy from them. There are also few brands that are owned by Australian distributors like Link Energy Panels. They are are a good choice from warranty perspective as the manufacturer (Certificate Holder) is an Australian company.