Niche market so high markup to pay for the maker margin and the seller margin. I found the vendor by following: https://diysolarforum.com/ https://diysolarfor

Niche market so high markup to pay for the maker margin and the seller margin. I found the vendor by following: https://diysolarforum.com/ https://diysolarforum.com/ https://www.youtube.com/channel/UCoj6RxIAQq8kmJme-5dnN0Q https://www.youtube.com/channel/UCoj6RxIAQq8kmJme-5dnN0Q DIY Solar Power with Will Prowse