These are the LEDs that come with our new Deluxe Afterburner LEDs.  These strips are much brighter than the "stock" strips that originally came with the  set, and are a direct replacement for the original LEDs.  The plug on the end of the strips is the same JST female connector, so you can purchase this strip and replace the one that came with your Afterburner LED, giving you 4-5 times more light output than the original strip.