Siding Light Mounting Block 8141DBL Black 2 Pack - Quick Outdoor

In this review the Vapikirv Siding Light Mounting Block 8141DBL is evaluated for homeowners and installers who need a tidy, weather-aware backing for exterior lights on vinyl and similar siding. The single biggest reason to consider this product is that it converts uneven siding into a secure, paintable mounting surface with a built-in electrical box, and it installs in minutes. The reviewer found it particularly useful when replacing or upgrading porch and landscape fixtures and appreciated the balance of durable UV-rated plastic and simple hardware included.

Key Features

• Built-in electrical box: Provides a ready mounting cavity so most outdoor fixtures sit flush without cutting larger holes in the siding.
• UV-rated plastic construction: The durable black material resists sun exposure and can be painted to match siding or fixtures for a neater appearance.
• Fast installation: The kit is designed for quick mounting-most installs take about 5 min when following the included instructions.
• Drainage weep hole: A bottom weep hole lets any water that reaches behind the block escape when left open, reducing trapped moisture risk.
• Includes hardware: The two-block pack ships with NM cable connectors and screws to complete a standard exterior light install without extra trips to the store.

Who It's For

The mounting block suits DIY homeowners and contractors who work with 1/2 in double lap vinyl siding or similar siding types like T-111 and HardiePlank and need a controlled backing for lights. It is ideal for replacing existing fixtures or adding new exterior lighting where siding profile makes direct mounting difficult.

It is not the best choice for projects needing a different block size without modification, or for installers who require an integrated metal box or specialty mounting for very heavy fixtures; some customization may be needed if your siding height or lap differs from the specified size.

Pros & Cons

Pros

• Fits snugly on 1/2 in double lap siding and creates a flat mounting surface for lights.
• Paintable UV-rated plastic blends with siding when finished, improving curb appearance.
• Quick to install with included screws and cable connectors, saving time on small jobs.
• Package provides two blocks so you can do paired fixtures or keep a spare.

Cons

• Designed for a specific siding height and lap, so users with different siding may need to trim or customize the block.
• Plastic construction may not satisfy installers seeking metal boxes for very heavy or commercial fixtures.

Specifications

Our Verdict

The Vapikirv siding mounting block is a practical, value-oriented solution for residential exterior light installs on compatible siding. It saves time, provides a neat, paintable surface, and includes the basic hardware needed. Buy it if your siding matches the specified dimensions and you want a fast, low-effort upgrade; look elsewhere if you need a different size or a metal electrical box for heavy-duty commercial fixtures.

Frequently Asked Questions

Will this fit other siding types?
Yes, it works on T-111, HardiePlank lap siding and flat surfaces, but the top should be sealed and the bottom weep hole left open.

Can the block be painted?
Yes, the black UV-rated plastic surface can be painted to match the siding or light fixture finish.

What is included in the package?
The 2-pack includes two mounting blocks, two NM cable connectors and ten screws to complete installs for two fixtures.