For adequate support you can mount exterior light fixtures to a solid block or base which you usually install before or during the siding process.
Putting light on top of siding.
Mounting box with built in electrical box.
For most of the house this method works wonderfully except for the top row.
Flashings installed on top of siding this fact became evident by looking at the rest of the home and one could see where the window sills had been cut off to make way for the vinyl siding.
You may have to make a small notch on the lower lip of the slat for the wire to pass through.
Flashing a piece of metal that is used above doors and windows to keep water from coming into a home or building.
The light architectural panels on the upper portion of the house contrast nicely the warm colored wood look siding installed below.
A third alternative is to hang a light item from a suction cup attached to the siding but this only works if the siding is smooth and untextured.
Nail a piece of metal drip edge to the top of the block with 1 inch roofing nails then set the block inside the space you cut out and screw it to the house sheathing with 2 inch screws.
Installers need to adapt their method when installing the top row of vinyl siding.
This exterior takes it to a new level mixing not only two colors but also two styles of siding as well.
This is a very common method of installing vinyl siding however not a very good one.
Any lower and you might see a few nail heads poking through the bottom of the next board any higher and your siding is likely to be loose and.
Hardie plank siding has a nail line across the top of the board that is 1 down from the top and nails are supposed to fall between and 1 from the top of the board to give the best hold.
Push the wire through the cable connecter then screw the block to the sheathing.