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making a circuit that switches between two sets of lights?

I am a novice to electronic circuits and am trying to make something for my kids. I want a circuit that, when activated, turns on a set of LEDs then after a few seconds turns the initial lights off and lights up a second (different color) set of LEDs. Thanks for the help

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fwdwafswaa profile image

the easiest way is with a RC timing circuit and a smal double throw relay. other than that digital does a good job. you said you were a novice so do the simplest thing. i will edit later if i can think of how to explain it. someone below me probably will for you.