So, the round lights are just $1 dollar tap-lights I bought at Big Lots. They take 3 AAA batteries each, all housed in the little light. They lasted all day.
The back of the armor also has 7 feet of blue EL wire which was connected to a battery pack hidden behind my neck. That battery pack took 2 AA batteries and they lasted all day and then some.
The omni tool has thicker EL wire than the armor, and it was 9 feet long, powered by a single 9volt battery. It went through 3 batteries in one day! So, the extra length, plus the extra thickness made it die sooner I guess.