so, LEDs are NOT plug and play. here is my dear hubs conducting a test to see if we can run 3volt dc only LEDs with 6volt flashlight bulbs on the same power source by using a dividing network of resistors, a transformer, and a regular 120 wall plug. i thought i would take a cute little photo of him working away. then i really looked at what he was up to. you know, 120volts will leave a mark.... careful the end of those red wires.