A look at the Rui Deng DPS-5015 http://www.tomtop.com/modules-219/p-e1973.html?aid=975
Tomtop website: http://www.tomtop.com/?aid=975
What would you like in part two? I'm thinking of putting the full 60V into the converter's input :)
"Includes Paid Promotion" in this video means that the buck converter was kindly provided by Tomtop at no cost to me - there were no cash incentives for me to make this video.