1. : Crafted from solid and durable plastic, this siding mounting kit has a textured, paintable white surface. It can be painted to match your vinyl siding or left in its natural off - black color for a premium finish. 2. Compact Size: Measuring 6.53 inches in width and 10.23 inches in length, this mounting block set is suitable for 4 - inch high Vinyl Siding with double 1/2 - inch width lap siding surfaces. The molding and blocks can be painted after caulking. 3. Easy to Install: Installing this siding mounting kit with a built - in electrical box is simple. Just drill a hole through the siding lap, insert the cable connector, mount the box using the included screws, and place the outside light fixture on the electrical box. 4. Wide Applications: This versatile kit can mount light fixtures on various siding types, including T - 111 and HardiePlank Lap Siding. Adding lighting to existing siding is made easy with the built - in electrical box.