extremely powerful 12 V battery unit for mobile use - also with vegetation on the fence and robust animals, including large battery container for a 12 volt battery, including fence and ground connection cable, manual turn switch (1 - 10) adjusts output energy steplessly, this makes power input adjustable to adapt more efficiently to fencing conditions, two separate LEDs for fence voltage and battery control, can also be operated with 9 volt dry battery 721 000249 00, solar option possible, connection directly to device, power consumption 22-245 mA