How to limit solar panel voltage?

jremington:
If you bother to do the experiment yourself, you will discover that it works as well as it is predicted to work.

These devices obey the laws of physics, so you don't actually need to depend on someone else's results.

seriously??? I am curious to find out how well the combination of components he brought worked. If you bother to give me the components he used, I will gladly experiment it myself. But I am mot interested in finding out if what he brought worked as well as he hoped it would.