Energizer MBS1800iThis Energizer powers 200 miles or 1,200 acres of clean fence in ideal conditions. The MBS1800i is a dual purpose energizer, which means you have the option of powering as a 110v plug in directly out of the box or as a battery solar (solar panel sold separately). Gallagher i Series Fence Energizer systems allow you to quickly and easily monitor your fence performance, informing you of any problems immediately so you can take action to protect what