MATCH THE OUTPUT WIRE COLORS FROM THE RGB CONTROLLER TO THE LED WIRE COLORS. IF YOU HAVE TWO OR THREE LEDS, PARALLEL THE WIRES FROM THE CONTROLLER. THE CONTROLLER HAS TWO SETS OF WIRES. EITHER ONE CAN BE USED IN ANY COMBINATION. EXAMPLE. TWO LIGHTS ON ONE SET, ONE LIGHT ON THE OTHER OR ALL OF THEM ON ONE SET AND CAP THE UNUSED WIRES