This is the jumper (extension) cords to loop the power and RJ signals from one row to the next, or hop between 4x8 flood trays.
So for example, you could light a 32 foot table with one 240V or 277V power cord, one 3' jumper cable, and 16 of the Faven R6, R8, or R8 Far Red LEDs. Then you would have two rows of 8 (~31' total length with 46" Faven bars) interconnected with a loop-back jumper cable.
The standard interconnect extension cords are 3 ft long. There is also a 6" (6 inch) and a 9' (9 foot) option.
