Can it be moved to another location? If not, then I'd do the same as was done to the drain pipe.....paint it the color of the wall. I don't think the sensor will be that noticeable once the black portion is painted.

I'd like to move it somewhere else, but that's where the only outlet on the patio is.

Where's the transformer? What about running the wire from an interior outlet? Our last house had a small sensor installed above a window frame with a hole drilled thru the wall, which led to an outlet in the garage. Our transformer was in the garage.

The garage is way around the other side of the house. I think it would look worse if that box was inside. It needs to be somewhere where the light sensor will work correctly.

If you go with a better quality transformer (not that Home Depot-type thing) you can mount the photocell remotely. Otherwise it is what it is.