These 4-pin JST SM pigtail connectors mate perfectly with the RGB LED strips. They also make a good general purpose connector for any project. Each pack comes with one male and one female connector. The wire leads are 6 inches long and are terminated with a JST SM connector on one end and left bare on the other.
4-Pin JST SM connectors
22 AWG stranded wire
Length (each connector with wire): 6 inches