I have been working on a movable item for my christmas display for 2 years, and now I just need one more item to make it work the way I want it to. The element has 12 volt smd strips powered by rc batteries , and I need to be able to turn them on and off by wireless. I only want them on for aprox: 3 minute or so, then off. does anyone have any ideas I am stumped at this point.