MPPT controller recommendations
I purchased four of these 100 watt panels from Home Depot. https://www.homedepot.com/p/Grape-Solar-100-Watt-Polycrystalline-Solar-Panel-for-RV-s-Boats-and-12-Volt-Systems-GS-Star-100W/204211365 I fi...
Forum Discussion
I recommend the Morningstar TS-MPPT-30 but at close to $400 there are lower cost controllers around. I don't think you need more than 30 amps. That is I would not pay extra for 40 unless you may expand the system. I bought the 60 and in hindsight the 45 would have been fine.
https://www.morningstarcorp.com/products/tristar-mppt/
Amazon TS-MPPT-30 $382
https://www.morningstarcorp.com/products/tristar-mppt/
Amazon TS-MPPT-30 $382
