The 12 VDC Jumper Wire is used to daisy-chain multiple LT-DEC retractable lights and TEMP-DEC temperature displays together, requiring the use of only a single power source. The jumper is 18 inches long and sold in packs of two. It is included in pre-configured panels with pre-installed Decora(R) options such as LT2-T1P and LT2P which feature combinations of component lights and a temperature display.