this subject comes up occasionally, there have already been a couple threads on this subject. Here is a google search that lists threads on this site for this subject: https://www.google.com/?gws_rd=ssl#q=site:modelcarsmag.com+LED Alternatively, you can do a google search for "simple LED circuits" that should show you what you need to do. A big decision is whether you plan to have the battery inside you model or not, after that it's just a process of connecting the LEDs correctly and mouting them in your model. I suggest building the lighting circuit outside of the model to test what you want it to do, then mount it in the model after you verify that it will perform as you need it to. Insufficient battery power may run the LEDs but they won't stay on very long.