The blank wire between the battery box and the first light is called the lead wire. Normally, the lead wire for our AA Pack is 18 inches and for our Waterproof AA Pack is 6 inches. If you are trying to hide the battery pack from your decoration, you may need more lead wire. By selecting to add lead wire, you are adding another 24 inches of lead wire.
Generally speaking, the 2 extra feet of lead wire will give you plenty of extra wire to hide the battery box. If not, you can go to our Parts section and pick up additional Lead Wire. You can add as many lead wires as you need.
Splitters - Customers who purchase 100 or 150 lights will get a splitter with their package. The splitter allows you to run 2 or 3 channels with your lights. There are 2 reasons to have a splitter. First, in many cases it is easier to handle short wires than it is to handle long wires. Second, the lights look better. The longer a line goes, the dimmer the lights get. The splitter eliminates that problem.
Feel free to connect these wires end to end if necessary, but you will notice some light loss from the first strand to the last strand.