Install LED lights behind a TV by cleaning the rear surface, measuring the perimeter, and sticking the adhesive strip along the back edges before connecting power.
For the full breakdown, see our best Behind TV Lighting guide.
Adding LED backlighting to your TV changes the whole feel of a room. The glow softens contrast in dark scenes and cuts eye strain during late-night viewing. The good news is that most kits go up in under thirty minutes with nothing more than a clean cloth and a steady hand. The process comes down to four moves: prep the surface, plan the layout, stick the strip, and power it up.
What You Need Before Starting
Most decorative TV backlight kits ship with the LED strip, adhesive backing, a controller, and a power cable. Govee’s current TV light lineup, for example, includes the TV Backlight 3 Lite at $69.99 and the Envisual TV Backlight T2 at $69.99, with higher-end models like the TV Backlight 3 Pro reaching $199.99. Before you unbox anything, gather a soft microfiber cloth, rubbing alcohol, and a clean workspace.
Check that your kit’s length matches your screen size. TV backlight products typically list compatible ranges on the box, such as 55–65 inches or 75–85 inches. Buying a strip meant for a smaller screen leaves gaps; one meant for a larger TV leaves slack that fights you at the corners.
The Step-by-Step Installation Process
Turn the TV off and unplug it before doing anything else. This protects both you and the panel—water or cleaning chemicals near a live connection is a risk no setup is worth.
- Clean the back surface. Wipe the rear of the TV with rubbing alcohol and a soft cloth. Govee’s guidance calls for a damp cloth to remove dust before adhesion. Let the surface dry completely—adhesive will not hold on moisture or residue.
- Measure your layout. Hold the strip up along the rear perimeter before peeling anything. Decide whether you want full surround lighting or a top-and-sides effect. The recommended placement for a subtle backlight glow runs along the rear edge so the LEDs stay hidden from the front.
- Peel and stick. Start at the upper-right corner if you are facing the back of the TV and run the strip clockwise around the rear edge. Press firmly as you go, giving extra attention around corners—sharp bends damage the strip, so use flexible routing and flat clips to secure those turns.
- Secure the controller and wires. Mount the controller on the center top edge of the TV’s back. Use wire clips to keep cables tidy and plan where the USB lead will exit before you stick anything down.
- Connect power and test. Plug into the TV’s USB port or an external adapter, then turn on the lights and check brightness and color. If a section is dark or dim, reseat the connection between strip segments.
Once powered, pair the kit with its companion app—Govee-style systems offer app and remote control—and adjust the brightness to match your room. A good starting point is low-to-mid brightness with a warm white or bias-light color temperature.
Common Mistakes and How to Avoid Them
The failures people hit with TV backlights are almost always preparation errors, not equipment faults. Skipping the cleaning step is the most common—dust under the adhesive guarantees a strip that peels off within weeks. Placing the strip where it is visible from the front defeats the entire purpose of the effect. And failing to plan the power lead’s exit route leaves you with an ugly cable dangling down the wall.
Sharp-bending corners is another frequent issue. The strip flexes, but it does not fold. Use the included corner clips or route the strip with a gentle curve instead of forcing a right angle.
One other thing worth knowing: some kits connect through an HDMI outlet rather than USB, but that design is product-specific and not universal. Check your kit’s manual rather than assuming every backlight works the same way. If you are still deciding between different behind-TV lighting setups for your space, our tested roundup of the best behind-TV lighting options breaks down what suits different room sizes and budgets.
Before you commit to an installation path, one table summarizes the installation essentials.
| Step | Key Action | Most Common Error |
|---|---|---|
| Prep | Unplug TV, clean back with alcohol, dry fully | Skipping the clean or using excess liquid |
| Measure | Match strip length to TV size range | Buying a strip meant for a smaller screen |
| Adhere | Peel, stick, press firmly around edges | Sharp-bending corners instead of using clips |
| Wire | Mount controller, route cables with clips | Leaving the power lead exit unplanned |
| Power | Connect USB, test brightness and color | Forgetting to pair the app before judging the glow |
Does Placement Matter for the Effect?
Yes. The whole point of a backlight is the glow, not the diodes themselves. If you can see the individual LEDs from your seating position, the effect collapses into a distracting string of bright dots instead of a soft halo behind the panel.
Govee’s installation guide points to running the strip around the rear perimeter of the TV. Daybetter’s practical guidance for its Aura TV backlight echoes the same logic—adhere along the rear edges where the light bounces off the wall rather than shining straight at you. For a 55–65 inch TV, that usually means covering the top edge and both sides, leaving the bottom edge bare if the strip falls short or your TV sits low on a stand.
If the strip is too long for your TV’s perimeter, route the excess along the bottom edge rather than doubling it back over itself. Double-layered adhesive creates a visible bump and weakens the hold on both layers.
References & Sources
- Govee. “TV Lights Collection.” Lists current TV backlight models and pricing.
- Govee. “Step-by-Step Guide: Installing LED Lights Behind Your TV.” Official installation guidance covering measurement, cleaning, and adhesive placement.
- Daybetter. “How to Install Your TV Back Light.” Practical setup guide for the Aura TV backlight, including clockwise mounting and controller placement.
