Go Power! DC Installation Kit number 2 is used to quickly and safely connect the inverter to the batteries and comes with 10 feet of #4 cable with a 110 amp class T slow blow inverter fuse. This kit is used on 12 Volt inverters ranging from 600-Watt to 1000-Watt and 24 Volt inverters ranging from 600-Watt to 1800-Watt as well as positive cables are to be placed as close to the battery as possible during installation. This contains all the required instructions.