Attached is a picture of my set-up. It is very simple and if for a car (12V) The LED kit comes with 3 options: Hard wire install, cigarette lighter install, and 9 + 9 V battery demo. The peculiar thing is when I connect the hard wire install plug (shown at the top of the picture) to a 6-parallel switch, it made a loud 'pop' noise and then no longer works with the other options. Before breaking the lights, both of the other options (shown below the 6-parallel switch) worked just fine. The equivalent 18 V battery didn't even destroy the lights, so why did the simple switch connected to the cigarette lighter at 12 V destroy the lights?