If you’ve got LED buttons, you need our LED Button Wiring Harness Kit to make wiring easier. Our harness allows you to connect up to 30 LED push-buttons. You simply connect one connector of the daisy-chained yellow leads to the 12V side of your LED button, and the black leads to the ground side of your LED button, and lighting your LEDs is a snap! Now comes with 12V Power adapter and DC to Molex Connector for snap-to-fit connection! No more cutting wires, and no more soldering!