I bought a ZW-L (manual says 2014) recently with the 660+ Watts, self-contained. At the recent Raleigh TCA meet, I was shown/explained THE ZW-L setup with two bricks; so the ZW is just a controller?. Why was this done (changing from self-contained power to external bricks) ? Advantages? Disadvantages? (Before I take mine out and use it).
Wally