[Cossett]

If you want extra lights most guys that use the mfu run a light modual to run any extra leds ( that can be done in a lot of ways) you need and then run them off a seperate channel...
But like everything its best to lay it all out on the work bench and test it before installing it in a truck or trailer so you know how it works together,
Some choose the MFU because there is no extra wiring of leds and other componants to run it and also the MFU come with the different clips and housing to install them unlike the two you mentioned that need other parts>
Also go to the Servonaut and Beier systems web sites ( not the resellers ) and have a good read of the list of things you need and what it requires to run them the price adds up very quickly ..........