I've got a lamp I do that with, using a
standard X10 lamp module. Rather than
turning the module OFF in between, I dim it
100%. For example, I have it turn on then
dim 100% at dusk; when motion is detected in
the room, I do a BRIGHT 40 rather than
turning it on, followed by a DIM 100 when I
want it back "off" (just to make sure it's
dimmed all the way down.) Then, at sunrise,
I turn the lamp off.
Just my method of getting around the
restrictions of a standard module!
Aaron