Jump Start T5 Strip Fixture Link Cord for Modular Systems
Using these link cords, you can daisy-chain five of the 4' individual strips (JSFS4) together, or ten of the 2' strips (JSFS2)(total maximum wattage of 270W). 21" length gives allows wider spacing between fixtures or 9" length for smaller areas.
Here are some of the Jump Start fixtures this cable can be used with: