The Klein Tools 69411 Circuit Breaker Finder Accessory Kit is part of a line of tools designed from the ground up by electricians for electricians. The Klein Tools 69411 is designed for use with the circuit breaker finder (not included), the Circuit Breaker kit has a light socket adapter that allows the circuit breaker finder to be screwed into a standard light bulb socket. The Klein Tools 69411 kit has an alligator clip adapter that allows the circuit breaker finder to be used on bare wires.