Extremely Reliable
Ive had a Rev-A unit in continuous operation since June 2000 at a remote cabin site on a small 300W 12V solar panel system charging a pair of Rolls CH375 batteries. The batteries are still going strong after 14 years.
If you cant afford a MPPT controller this is definitely the way to go. Even if you can afford a MPPT controller this might be a better choice for its ability to start/remain operating in low light conditions that can cause MPPT controllers to drop out.
1 of 1 customer found this useful