The main benefit of choosing a Mains Powered Electric Fence Energiser is that there is less maintenance required i.e. there is no heavy battery to regularly charge and baring power cuts, the power supplied to the electric fence by a mains energiser should also be at a constant level, providing the most reliable electric fencing system.
The first image below shows a typical Mains Powered Electric Fence Energiser, the second image details the new Phoenix energisers with the main features highlighted.
If you need any help with choosing the right mains energiser, 'Choosing a mains powered energiser' will provide you the right advice.