These are two magnetic LEGO train connectors, buffers that have been modified to allow electricity to pass through the magnets so that you can wireless connect lighting to each train car. Each wire is approximately 5.5" long. These are sold in pairs, you get two magnetic train connectors with wires.

It is reconnectable which means there is a DC input wire on one end and a DC output wire coming out the other end so you can connect additional lights without adding another power source. Reconnectable lights are an excellent way to reduce the amount of wiring and power sources in your LEGO build. 

This is part of our DYI System and will require a Power Source to operate. The DC outlet will plug into our compatible 2 port Coin Battery Box, 2 port AAA Battery Box, 10 port USB hub or 2 port USB hub. It can also plug into a reconnectable light and share it's power source.

The wires are approximately 12" each.

The RGB light flashes, transitions between colors and does all kinds of random movement. This is an excellent piece for a Dance Party Disco MOC.

All other colors are static lights and do not move.