John,
The rule of thumb is that you shouldn't use a dimming X-10 module or switch
on a lamp or light that also has a built in dimmer. Therefore, you would
need to use an appliance module. An appliance module is non-dimming,
therefore to dim the lamp you would have to use the dim control on the lamp.
Your Pronto would simply turn the lamp on/off. I recommend that you use the
improved appliance module with Automatic Gain Control.
Another option is to bypass the dimmer on the lamp as you mentioned. If you
do this then you would be able to dim the lamp with your Pronto. In this
situation I recommend the 2-way lamp module.
Some people with lamps like yours adjust the dimming on the lamp to 100% and
then use a lamp module to remotely dim the lamp. This is not the correct
way to do this and it can cause some problems despite the fact that the lamp
can be dimmed remotely when you do this. The lamp can buzz loudly and the
bulb life will be shortened. I don't recommend that you use a lamp module
unless you bypass the lamp dimmer.
RCI Automation
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