U Channel Aluminium Light Blocking Strips for Roller Blinds - Black

In this review the focus is on a simple, practical fix for light leaking at the sides of blackout roller shades. The U Channel Aluminium Light Blocking Strips are a pair of 58in metal side tracks intended to stop side gap light and improve room darkness for daytime sleepers, nurseries and media rooms. Installation is straightforward, the strips are easy to cut to size and they create a near blackout effect when paired with compatible roller or zebra shades - this is the main reason someone would buy them.

Key Features

• U-shaped aluminium track: The thickened aluminium alloy construction provides a rigid channel that holds along the side of the shade to reduce side light leakage.
• 58 in length, easy to trim: Each pair measures 58 x 1.6 x 0.99 in and can be cut to fit smaller windows with a cutting tool for a custom installation.
• Included accessories: The set ships with side covers, screws and installation instructions so you have the pieces needed to mount the tracks.
• Repeatable installation: The strips screw to the window frame and can be removed and reused if you need to reposition or take them down.
• Improves darkness and privacy: When paired with compatible blinds the side tracks significantly reduce light gaps and help create a dark environment for sleep or movie viewing.
• Suitable window types: Designed for roller shades, zebra shades and many blinds; not recommended for cellular or honeycomb shades.

Who It's For

These light blocker tracks are best for people who already use blackout roller or zebra shades and still notice annoying side light that interferes with daytime sleep, infant naps or media room viewing. Renters who can screw into a frame or homeowners with standard window frames will find the product useful for improving privacy and room darkness.

People with cellular or honeycomb shades should look elsewhere because the U-shaped track is not compatible with those systems, and anyone whose shade lower rod is thicker than 0.5 in or whose side light gap exceeds about 1.5 in should confirm fit before buying.

Pros & Cons

Pros

• Works well at blocking side light when installed correctly, creating much darker rooms.
• Sturdy aluminium construction that feels durable and holds its shape over time.
• Easy to cut to size and straightforward to mount using the included screws and covers.
• Reusable after removal, which is convenient for temporary setups or moves.

Cons

• Not compatible with cellular or honeycomb shades, limiting applicability for some window treatments.
• Requires screw installation and a lower rod less than 0.5 in thick to fit as intended.

Specifications

Product type	U-shaped light blocking side tracks
Material	Thickened aluminium alloy
Size	58 x 1.6 x 0.99 in (2pcs)
Includes	Side covers, screws, installation instructions
Compatible shades	Roller shades, zebra shades, many blinds (not cellular/honeycomb)
Fit limit	Lower rod thickness must be < 0.5 in; side light leakage < 1.5 in recommended

Our Verdict

For anyone battling side light on blackout roller or zebra shades these aluminium U channel strips are a practical, cost effective solution that noticeably improves darkness and privacy. They are durable, easy to trim and install with the supplied hardware, but buyers should verify compatibility with their shade type and lower rod thickness before ordering.

Frequently Asked Questions

Will these fit my cellular or honeycomb shades?
No. These U-shaped aluminium tracks are not suitable for cellular or honeycomb shades; they are intended for roller and zebra style shades.

Can I trim the strips to fit smaller windows?
Yes. The 58 in tracks can be cut down with a cutting tool to match your window height and create a precise fit.

What if parts are missing or damaged?
The seller offers after-sales support and will resend missing or broken accessories if you contact customer service.