The ZW-C will be hard pressed to actually deliver 720 watts continuously I suspect. The ZW-L would be my choice if I needed that much power. For one, you get a currently supported transformer, the ZW-C main board has not been available for some time. Also, the ZW-L supports finer speed steps when under TMCC/Legacy control for their PowerMaster function. Other points are the meters and the better circuit protection. By the time you buy the ZW-C and the four bricks, you are knocking on the door to the price of the ZW-L.