Is it possible to burn out the LED with 1 AA battery? I wanted to test my new AV switches and tried with 1 AA battery (I watched the video from Madcow and thought they were rated for 3 volts.). I figured that I would have a dim light. What I got was no light from one and about a second of light from the other. Did I really screw up? I didn't think 1 AA could push too much ohms. Please, what did I do wrong so I don't do it again.