The CL-LEDVBAR will allow vertical mounting of 3 or more CL-LED600 LED panels (or similar fixtures on one light stand). It includes 1 5/8" baby male adapter on the top end and 1 5/8" female baby adapter at the other end. LED panels are not included and available separately. For a 3 panel configuration, you would need 1 CL-LEDHBAR and 1 CL-LEDVBAR. For a 4 panel configuration, you would need 2 CL-LEDHBAR and 1 CL-LEDVBAR.