I have 2 home built solar powered B/C units and Will Prowse recommended them. You can trust Will Prowse. I also installed remote MT50 blocks alongside for viewing/editing. I implemented a 24v configuration, each wired in series with 3 Renogy 320w panels. I have 3 panels facing the morning sun and 3 facing the evening sun. Panels aligned in the morning produce significant power in the evening and vice versa, partly due to the fact that 3 Renogy panels generate high voltage to dissipate the current. from the sun.