code: public Task turnDiskLocatorLedOff_Task(String[] scsiDiskUuids) throws HostConfigFault, RuntimeFault, RemoteException {
          ManagedObjectReference taskMor = getVimService().turnDiskLocatorLedOff_Task(getMOR(), scsiDiskUuids);
          return new Task(getServerConnection(), taskMor);
      }
docs: Turn off one or more disk locator LEDs. This is a batch operation to turn off one or more disk locator LEDs,
  which is the opposite operation of {@link #turnDiskLocatorLedOn_Task}
  
  @param scsiDiskUuids The SCSI disk UUIDs for which the disk locator LED should be turned off.
  @return Task
  @throws HostConfigFault
  @throws RuntimeFault
  @throws RemoteException
  @since 6.0