The CL-LEDHBAR will allow mounting 2 CL-LED600 LED panels (or similar fixtures on one light stand. It includes 2 5/8" baby male adapters on the top ends and 1 5/8" female baby adapter in the middle bottom. LED panels are not included and available separately. Also see the CL-LEDVBAR to allow vertical stacking of CL-LEDHBARs and our LED600 into 3 or more panels on one light stand.