To ensure such a high voltage, the wires used for the energizers need to have a high conductivity. This means that the wire should have a low resistance. For this purpose, professionals at Stinger use a specially made aluminum wire which has an extremely low resistance of 30 Ohm/km, compared to 260 Ohm/km on braided steel wire. The lower the resis- tance, the higher is the conductivity. This results in higher energy and voltage availability on the fence.