It's a bit ugly since it requires several components, but I was using a standard motion sensor that did not have a relay output with a relay and a power flash. If you found one with relay output, you could simplify.
The configuration would be a standard light fixture controlled by a motion sensor. The same output from the motion sensor could be hooked up to a 120VAC relay to control a contact closure on the PF which could then trigger your other lights. The big downside of this is packaging in that you don't end up with a nice compact outdoor compatible installation. On the up side, you have a much greater selection of motion sensors and can pick one that meets your needs. I can't find the one I am using (Heath's site is terrible for finding exact product). I bought a replacement sensor at Home Depot for ~$20. It was a 240 or 270 degree unit with "Creep Zone" and Boost. Basically, that just gives a down facing sensor and picks up motion out to 100'.
The Motion Sensor triggering a 120 volt relay and a PowerFlash will send an X10 command when turning On and Off.
You would not be able to turn it On and Off with an X10 power line command.
Couldn't you simply use an in-line x10 module on any standard floodlight and a ms16a motion sensor? Set the motion sensor to the same HC and UC as the in-line module and the motion would turn the light on and off.Remote or not, you would still need a transceiver to change the MS16A RF to PLC for the inline module.
I do have a floodlight hack, but the ice cube relays from rat shack are M.I.A.Rat Shack (a.k.a. Radio Shark) is M.I.A. They need to rename themselves "Phone Shack-The Home of Ridiculous Prices".
I do have a floodlight hack, but the ice cube relays from rat shack are M.I.A.