this of for airstream RV 30 fter. In reading jacks and handy bobs site I sorta see where the higher voltage panels, even with the lower amps, are most likely the better choice.
higher voltage = smaller wire = less weight = lower cost for wire and smaller hit to CCC of trailer. win win win.
right now looking to go with mppt controller either morningstar 30 amp w bogart meter or bluesky SB3024DiL with pro rn remote display going to what is now 2-12v volt (not sure Ah don't have TT yet) deep cycle type batteries, which will be change out for 2 6v golf cart crown or US batteries type units in the future.
the 195's are a bit larger (5" wider and 5" longer) but should work on top.
One thing i did read on Jack's site was "The Golden Rules of RV Solar and Electric" was Use high voltage (over 28 volts) on any but the smallest systems (small: under 400 watts) so that is what I am going on as well.
the charge controllers at 30 amps are able to handle 5 total panels if i decide to add a couple more in the future so everything will be sized for 5 panels from roof to batteries.
