What size in-line fuse would work for some lights

[notatoy]

easy and cheap way is to use a led cycle light . i got mine from a doller store . then used some old computer ethernet cable . unsolder the leds from the flasher board hot glue in your r/c shell the solder the Ethernet cable to wear the led contacts were , and then to the leds , . the advantages are it is self powered buy to AA, cells , has a permanent on or 7 multi flash rates , very easy to do and cheap ,....here is a video of one i installed in my truck shell ,,....