This 20W solar panel is ideal for running small 12VDC loads such as electric fences, data loggers and monitoring equipment. It can aslo be used to tricklecharge 12V batteries, keeping them in top shape when stored. Expect about 2 hours of full production in winter in Canada - roughly 1.2Ahr/day. In summer this increases to 3Ahr/day. It can be directly connected to larger batteries, or through a charge controller for small sealed battery systems. Ideal mounting angle for maximum winter production is 70 degrees. Mates with SPM-20 solar mount (extra).