I meant it as a general thing. These days all manufacturers, from all countries, offer 20+ year warranties. Not just Chinese ones.

However you inspired me to do some research, and I found this: https://www.cnet.com/home/energy-and-utilities/best-solar-pa....

The article lists top PV manufacturers and their efficiency ratings, production warranty, and other statistics. There are several Chinese companies on the list with 25+ year warranties. The article's top-rated manufacturer in the category of "Longest production warranty" is ZNShine Solar, a Chinese company that offers a 30 year warranty.

Thanks! What is the significance of all-black models?