Plugs into cig lighter, 12 v outlet, wall plug or computer- comes with all these kinds of adapters, 10' long extension cord to reach anywhwere! $14-16 includes delivery. If you contact me (the inventor of this no inverter needed lighting design) I just might send you an extra strand for free! Happy Holidays! firstname.lastname@example.org 1-866-241-4518 RGB With Remote https://www.amazon.com/dp/B07JK8QDYX RGB https://www.amazon.com/dp/B07JK869Z6 Extra Single Strand unit has not even been listed on Amazon yet! Get 'em while you can-email or call me. Thanks!