The use of low impendence output joule technology ensures that maximum joules is available to drive voltage along the fence wire. When vegetation growth increases on the fence wire or a fault occurs, the output joules in the fencer will rise to meet the extra demand for power. The joules will stay rising until the maximum output joule rating of the fencer is reached. Heavy vegetation growth on a fence wire is normal, therefore, all our fencers are produced to ensure there is adequate voltage on the fence wire to control livestock under heavy vegetation growth conditions.