Cordless Cellular Shades Blackout Honeycomb Blinds 21in x 48in - No

In this review of the Cordless Cellular Shades Blackout Honeycomb Blinds the bottom line is simple: these shades are for anyone who needs true blackout, fast installation and a clean cordless look. Installation takes about 30 seconds with the patented No Tools-No Drill system, so renters and busy homeowners will appreciate that it fits inside mount windows without drilling. The fabric is polyester with a silver-plated cell that blocks sunlight and UV, and the cordless operation makes daily use safe and straightforward for families with children or pets.

Key Features

• No Tools-No Drill system: The patented mounting design installs without drilling, making it ideal for renters or anyone who cannot modify window frames.
• Real blackout construction: A silver-plated layer inside each cell blocks sunlight and UV for a darkened bedroom or media room during daytime.
• Cordless operation: The cordless mechanism lets the shade raise and lower smoothly and reduces risk from tangled cords for homes with children or pets.
• Adjustable fit: The unique spring rod and a small width deduction mean the actual shade fits window openings roughly 20.7in to 21.6in wide and adjusts in height from 0in to 48in.
• Insulating honeycomb cells: The 3/5in cell structure maintains a uniform appearance while helping reduce heat transfer and some outside noise.
• Quick installation: All-in-one hardware and the no-drill clips let most installs be completed in under a minute per shade.

Who It's For

These shades are best for renters, landlords, and home buyers who need a non-permanent inside-mount blackout solution that looks neat and installs without tools. They suit bedrooms, nurseries, bathrooms and media rooms where light control and safety are priorities.

People who need outside mount shades, custom widths larger than the listed range, or deeper frame installs should look elsewhere, since these are intended for inside mounts with a minimum frame depth of about 1.2in and a specific width range after the standard 2/5in deduction.

Pros & Cons

Pros

• Easy, tool-free install that protects window frames and is great for temporary living situations.
• Effective light blocking thanks to the silver-plated blackout layer, improving daytime sleep and media viewing.
• Cordless design is simple to operate and safer for households with children or pets.
• Insulating honeycomb construction helps with temperature control and reduces some outside noise.

Cons

• Inside mount only and requires at least about 1.2in frame depth, so it will not work on all window types.
• The listed width deduction means the actual blind is slightly smaller than the nominal size, so careful measuring is required.

Specifications

Brand	LazBlinds
Material	Polyester with silver-plated inner layer
Mount Type	Inside mount only
Nominal Size	21in W x 48in H
Actual Shade Size	20 3/5in W x 48in H
Fitting Range	Fits window widths approx 20.7in to 21.6in
Cell Structure	Non-sagging 3/5in honeycomb cells

Our Verdict

These cordless cellular blackout shades are a practical, low-cost way to get true darkness and a neat cordless look without modifying windows. They are particularly good value for renters and families who want safety and insulation benefits; just measure frames carefully for the inside-mount fit and minimum depth requirement.

Frequently Asked Questions

Do these require drilling?
No, the patented No Tools-No Drill system installs without drilling into the window frame.

Will they fully block sunlight?
Yes, the silver-plated inner layer is designed to provide real blackout and block UV for a dark room.

Can the height be adjusted?
Yes, the shade height adjusts from 0in up to 48in and the spring rod allows a small amount of width flexibility.