MidNite Solar's Classic line of charge controllers offers MPPT technology along with Arc Fault, Ground Fault, free web monitoring, a graphics panel and Solar, Hydro and Wind Modes. All Classic models also come with MidNite’s exclusive HyperVOC which extends VOC limits when needed. We were lucky enough to be able to test one of the first beta units back in 2011 and it is still performing well, eight years later. We have used them in almost all of our off-grid installations. We have found these charge controllers to be one of the most exceptional in the RE industry. Another perk, great tech support and a MidNite Solar forum to help answer any questions you might have.