This is a quality simple mains energiser it can power up to 8000 metres of single strand fencing or 4000 metres of dual strand due to the energiser being mains wired it should be housed in a dry building maximum output energy 13j maximum voltage 6500v mains 230v suitable for horses and pets if this is your first mains unit a mains wiring kit would be required for this see code 41002 m100 mains energiser 8000 metres single strand 4000 metres double strand if you wan