Hi Dave and thanks for responding to my post.
I did try setting the camera to manual, but the floodlights are still turning on whenever the VT38A unit detects motion, irrespective of whether it is light or dark out.
Can you send me a Iink to the VT38A manual you referenced? I'm asking because the only one I could find online (which is at:
https://fccid.io/B4SVT38A/User-Manual/Exhibit-D-Users-Manual-per-2-1033-b3-171245)
is showing different switch designations than the ones on the vt38A unit I have, which is leading me to wonder whether X10 produced different versions of this unit.
Specifically, the manual I found is showing the camera manual/auto setting switch you referred to as one instead labeled "unit code" and is also showing the darks vs. light sensor settings reversed,with "dark" being the full right setting and "light" being the full left one.
Additionally, the printed instructions on the inside of the flip down door regarding camera mode in my VT38A unit appear to contradict what you interpreted from whatever manual you had access to. Regarding camera mode, they state the following:
"Set CAMERA MODE switch to MANUAL for camera to stay on unless you turn it off from an x10 controller. Set switch to AUTO for camera to turn on with motion and to turn off some time after motion stops. Floodlights turn on with motion then time out and turn off
regardless of switch position If those instructions are correct, they appear to state the floodlights on my VT38A unit are triggered independently of how the camera is configured. Also, I can't find any reference in the VT38A manual I found on how to use an X10 controller to shut off just the camera in the unit but not the motion detector. If that is possible, it would presumably require having either having different addresses for the camera and motion detector or changing some sort of settings in SmartHome for the configuration of the VT38A unit, which I have not been able to find.
Thanks again for any additional suggestions you might have on getting this unit to turn it's motion triggered floodlights on only at night.