12V solar energiser for short fences.( Approx. 800 m with two cables. Connect the cables at regular intervals.) Includes 8W solar panel, 12Ah battery, function indicator, battery indicator (warns of low battery ) and discharge protection.Supplied with adapter for charging battery, fence and earth connection cables and small earth stake. Trickle charge is recommended once or twice during winter storage. 1.4J stored energy 1.0J output energy.