Power Line Issues / Interference ?

[bkenobi]

You mentioned this is for a green house.  I don't know what you use in there (heater, fan, lights, etc), but keep in mind that the XPPF is rated at 5A.  I have never used it, but others have reported that if you get close to that 5A rating, the unit may start to outgas/smoke.  I can't confirm, just passing on in case you are in that situation.  I don't believe it was reported as a safety issue, but I certainly would avoid getting close to the max rated load without first monitoring.

[JeffVolp]

The XTB filters look like they are gone.

Yes, they've been gone over a year.  But the schematic, parts list, and assembly notes are on line if anyone wants to build one themselves.  I used 4-ounce copper PCBs, but they are simple enough that they could be built with point-to-point wiring.

Jeff

[Moose]

I have found that the XPF filter works well. https://www.x10.com/products/xpf
I have converted a bunch of these to plugins with good success. https://forums.x10.com/index.php?topic=31517.msg187570#msg187570