MBS400 MULTI POWERED ENERGISERDesigned for mains, battery or solar installations. No matter what your power source or location, the Gallagher MBS Energizer range provides a high performing and convenient animal control solution. Powers: 8 kilometres 40 acres Contains: 4 Joules of stored energy Suitable: For all types of animals Easily set up portable or permanent installations in any location. Once installed, the LED bar graph on the Energizer indicates fence voltage performance.