2.5 Joules. Powers up to 80 acres (15 miles) of multi-wire fence. Green indicator light flashes when Energizer is working properly. Red indicator light flashes with each pulse at approximately 2000 volts and above.
2 Year Warranty
This product has worked perfect for me for the last six months. It is keeping my goats & sheep in and stray dogs out. As well as some foxes. it took one time hitting the fence and they have not touched it again.