Well the finding is that LED lamp style bulbs may have a tendency to stay partially lit in most X10 modules.
In my dimming wall switch module with an 18 LED lamp is 30% lit (intensity) when off, and 100% intensity when on. In other words, I can't turn the light off unless I flip the module cutoff lever manually on the switch. This shuts off the module alltogether.
My appliance module, AM486, which I was hoping would be the solution, bleeds light when off as well. All 60 LEDs in my spotlight LED bulb were dimly lit (15%) when the appliance module (Polarized 2 pin) is off, and blinds me when it comes on. The 18 LED and 35 LED Dome type LED modules behaved the same. My experience is that it appears the more LEDs, the dimmer each LED is when the module is off. The 18 LED bulb was about 30% lit when off. I also noted my NEON design bulb (Red heart w/arrow) would blink when the module was off. Not enough to color the whole tube when cold, but colored the whole tube when warm. Not bright intensity though, but enough to ignite the gas. It appears there is a capacitor in the LED bulbs removes the pulsing effect seen in the Neon & CFL lamps, which also keeps some of the LEDs dimly lit even after removing the bulb from the socket for a few moments.
TM751: transceiver module (with the antenna) emits light from LEDs when off.
Behaves like appliance module.
LM465 dimming Lamp module: My CFL actually did blink - I hadn't noticed it until recently.
The LED bulbs are dimly lit when it is off. There is not much difference between the higher % intensities of the dimmer modules, but after a few dim commands, it does work. The 1st 3 dimm commands on my 60 LED spotlamp are barely noticeable, the 4th-6th are noticeable.
I can't tell when it reaches 0% or off because the bulb never goes out. The intensity levels are not consistant per dimming keypress. In the middle intensities there is some slightly noticeable flicker
Solution: Socket rockets seem to be the answer here, despite having the additional hassle
of programming them. The rockets shut the LEDs all the way off.
I used a TM751 RF transciever and learning remote to program mine. Set TM751 to house code of choice for your rocket, program the remote in advance for rocket house & unit code, plug in the lamp already turned on, and send the light on command repeatedly from the remote as if it was already programmed. This must be done in the 1st 30 seconds after the rocket first receives power. Rockets are set to A1 out of the box. Recommend programming rocket with incandescent bulb. 40W+ as per documentation+
We'll see if I have any problems with them...
Gizmo