I believe the W signifies wireless which is great for multiple pump set ups....they actually talk to each other also they can communicate with eco marines leds. As far as mode most people seem to like reef crest which I believe is yellow or lagoon which is purple. Both give nice random patterns. http://ecotechmarine.com/ecosmart/vortech-ecosmart-driver/ecosmart-modes/
it's wireless in that is communciates wirelessly with other ecotech wireless devices MPw's and Radion's (and the WXM module for apex), it still needs to be plugged into the power and the controller
thanks everyone. Obviously my first mp ecotech. Running two jbj 1600s on a wave maker and a Koralia 600gph. Going to remove the 600 and put the mp10 in its place. Just need a little more flow and randomness. Love my koralias I had in place of the jbjs but didn't last long. Even with cleanings. What Yall think.
Random Reef crest and Lagoon mode (random):
Yellow Dial with First 2 brightly lit is Reefcrest mode (dimly lit max speed set)
Yellow Dial with 3rd and 4th brightly lit is Lagoon mode (again dimly lit are max speed setting)