Blackout Cellular Shades 35.5 in x 78 in - No Drill Cordless Install

In this review of the Blackout Cellular Shades 35.5 in x 78 in the bottom line is simple: these cordless honeycomb blinds are best for renters and light-sensitive sleepers who need quick, damage-free blackout and insulation. The reviewer found the installation genuinely easy and fast, praised the blackout performance and thermal benefits, and noted the safe cordless operation makes them suitable for homes with children or pets. The review focuses on fit, ease of installation, and real-world comfort improvements rather than marketing claims.

Key Features

• Size and fit: The width is trimmed 3mm by default to ensure a snug, accurate fit against the chosen size for clean installation and minimal light gaps.
• Damage-free install: The no-drill, no-tools mounting system installs in roughly 30 seconds, allowing renters to avoid holes and wall damage while getting privacy fast.
• Safe cordless operation: The cordless, spring-driven lift provides a quiet, pet-friendly glide with no dangling cords to worry about in family spaces.
• Blackout and insulation: The honeycomb cells trap air to block sunlight and reduce heat transfer, helping lower room temperature swings and protect furniture from UV.
• Durable construction: A lamellar spring system and rust-proof aluminum frame resist wear through 10,000+ lifts and are built to withstand temperature and humidity extremes.

Who It's For

These shades are ideal for apartment dwellers, renters, or homeowners who want a fast, noninvasive install that still provides real blackout performance and improved thermal comfort. People who need better sleep conditions-shift workers, light-sensitive sleepers, or those creating a home theater-will appreciate the deep light blocking and noise damping.

Those looking for motorized remote control, intricate decorative drapery, or outside-mount solutions that require drilling into trim should consider other options. Also measure carefully: custom sizing is available, but accurate dimensions are essential for the cordless inside-mount style to fit as intended.

Pros & Cons

Pros

• Very easy, tool-free installation that leaves walls intact and takes roughly 30 seconds.
• Effective blackout and measurable insulation that helps reduce heat transfer and street noise.
• Safe cordless system with quiet spring lift, suitable for homes with children and pets.
• Durable materials and mechanism designed to handle thousands of lifts without fading or cracking.

Cons

• Stability opinions are mixed among users, so extremely heavy daily use may require occasional adjustment to maintain perfect alignment.

Specifications

Product type	Blackout cellular honeycomb shades
Color	Blackout - Black
Size	35.5 in W x 78 in H (trimmed 3mm default)
Installation	No drill, no tools, damage-free mount
Operation	Cordless spring-driven lift (quiet)
Frame	Rust-proof aluminum
Durability	Lab-tested for 10,000+ lifts and extreme conditions

Our Verdict

For anyone needing dependable blackout, quick installation, and a cordless, child-safe operation, these 35.5 in x 78 in cellular shades are a strong value. They combine effective light blocking and thermal insulation with a noninvasive mount and durable build, making them especially good for renters and bedrooms where quiet, dark conditions matter.

Frequently Asked Questions

Will these shades fit my window if I choose an inside mount?
They will if your measurements are accurate; the manufacturer trims width 3mm by default and will confirm dimensions before production to help ensure a proper inside fit.

Do I need tools or to drill holes to install?
No, the product uses a no-drill, no-tools installation system designed to mount without damaging walls or trim.

Are these safe for a nursery or a home with pets?
Yes, the cordless design removes dangling cords and the quiet spring lift is well suited for nurseries and pet-friendly homes.