Each Add-a-circuit comes with 16 gauge red wire 5 inchs long, with a blue 16-14 gauge vinyl butt connector.
Amp and power rating to be use in a 12 volt dc system up to 20 amps
Provides one fuse holder to protect existing circuit, and a second fuse holder to protect new circuit.
These are common in newer cars and truck's so please check your vehicles fuse box and or owners manual before buying