I'm only guessing here-- MINE are put on by me. They are a single unbroken ribbon
of LEDs 5 meters long. If any go out the only option is to replace the entire ribbon.
IF yours are a single ribbon that is your only option also. You should be able to look
at it and tell if it's segments plugged into each other or a single strip.
Hope you have a great camping trip otherwise and welcome to FRF!