If you just want to do headlight and taillights I use this switch
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
and these 3mm lights they come with resistors
https://www.amazon.com/dp/B077XFLX13...ing=UTF8&psc=1
or these 5mm
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
But you need to buy resistors
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
it's pretty simple to wire them up once you get used to it... or look here.
https://rctruckandconstruction.com/showthread.php?t=441
We can help you thru it... this way you can customize your lighting..