> Electronic timers etc. typically rely on a small current through the > bulb (in 'off' mode) for power. An electronic ballast would probably > either not pass enough current, or the phase shift caused by the > capacitor would cause problems, or the small current through the > timer in 'off' mode might cause occasional flickering as the cap > slowly charges and the lamp tries to start. So GE are just issuing a very generalised warning about electronic control of fluorescents. Switching with a relay would be OK, what is there in that type of fluorescent that could cause trouble with a simple triac switch (ie bulb as load between triac and N) ? -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.