- High quality materials: This vinyl siding mounting kit is made of durable plastic with a black textured surface. The outdoor light mounting plate is larger than many mounting blocks, providing a sturdy, attractive base that enhances the look of the light after installation. - Size and fit: The kit measures 6.65 inches wide by 10.23 inches high and fits tightly with 1/2-inch double-layer and 4-inch high siding. If the siding does not fit perfectly, you can apply a small amount of caulk before painting the block and molding. Note: To prevent water entry into the distribution box, seal the top of the electrical box (the bottom drainage hole should remain open). - Easy installation: Quick and straightforward to install. Run wires through the center punched hole, place the wires in the box, and keep the bottom drainage hole open to allow any water that seeps behind the block to drain out. - Applicable types: The mounting block supports lamp installation on all siding types, such as T-111 and HardiePlank lap siding. The built‑in distribution box makes it convenient to add lighting to existing siding. - Use scenarios: - Install a porch or entryway light on exterior siding to improve safety and curb appeal. - Add exterior lighting to a shed or garage with siding. - Create subtle accent lighting along a siding run to highlight architectural features.