This siding mounting kit is crafted from solid and sturdy plastic, featuring a textured, paintable white surface. It allows customization by painting to match the color of vinyl siding or can be left in its natural off-white state. Note that it only fits snugly on 4 in. high siding with a double 1/2 in. lap. Measuring 6.53 in. in width and 10.23 in. in length, the kit is specifically designed for 4 in. high vinyl siding with a double 1/2 in. lap surface. The molding and blocks can be painted after caulking. To prevent water from entering the electrical box, seal the top except for the bottom drainage hole. Installation on vinyl siding is straightforward with the built-in electrical box. First, drill a hole through the siding lap to thread the wire outside. Second, remove the knock-out from the electrical box and insert the cable connector. Third, pass the wire through the connector and secure the box with the included screws. Finally, mount the outdoor light fixture onto the electrical box.