Hey … watch it … I have the corner on trying “ridiculously stupid” concepts here!
1. I have used a WS13A relay switch as an Enable-Disable switch with a downstream Levitron HCM-10 Dimmer (1000W) controlling two sets of 150W-each floods (4 lamps total, 150W each, 600W total). When Enabled (WS13A relay ON), I can control the downstream HCM-10 Dimmer no problem. When Disabled (WS13A relay OFF), no lighting occurs. So, the X10 commands are getting through the WS13A relay switch.
You can ONLY use a relay switch - no electronic switch modules … that leaves out the WS477 wall switch.
2. Socket rockets have 150W max rating. So no-go if you’re using TWO 150W lamps in a dual floodlight fixture. Also, even if you’re only going 150W, the sock-rock is at it’s maximum rating. That’s why I went with a Levitron 1000W unit - plenty of design overhead.
You’ll get all sorts of ideas here. You could (I think) use a relay switch as a master ON/OFF and a sock-rock for EACH flood socket - even outdoors, and control all your flood lamps individually. Again, I didn’t go that way since I wanted to run 150W lamps and the sock-rock is rated at 150W. Yes, the rating is sufficient - I just want more design overhead.
Just wanted to express what I did that did work.