How Much Load Can You Put On a D20F Dimmed Leg?

D20F (and AD20F, along with other 3-wire fluorescent dimmer modules) modules output to a dimmed and a hot lug, but only have one breaker. This breaker feeds both lugs. So, it is possible to put a full 20A of load on the dimmed leg if there is nothing on the hot leg or vice versa. This means that an existing D20F 3-wire fluorescent circuit can be converted to 2-wire dimmable loads--though it is likely that these loads will perform better on an LED10 module.