FFJ TV LED Backlight with Sensor, 14.7ft RGB Strip for 55–65-Inch TVs

A simple RGB strip is mainly for adding color behind a TV, this FFJ kit is designed to make the lighting follow what’s on screen. Its camera sensor reads screen colors, while app controls let you adjust the ambient effect for movies, gaming, or music.

The kit is sized for 55–65-inch TVs and includes a 14.7ft strip that can be trimmed at designated points. That makes fit and screen-sync lighting the key reasons to consider it over a basic, manually controlled strip.

Highlights

The sensor-based sync is the main distinction: instead of choosing one color or a preset pattern, the strip is intended to reflect colors from the screen. The listing also describes 24 movie modes and 6 music-reactive settings, giving you other effects when you don’t want screen matching. For a movie night, for example, the changing backlight can add color around the TV without requiring a separate light in the room.

A Bluetooth app provides adjustments for brightness, saturation, and hue. The strip is multicolor and dimmable, and the listed features include a timer and automatic on/off. The product description says it detects when the TV is on and switches off after 5 minutes of inactivity. These features suit someone who wants more than a fixed accent color, though they also mean setup involves positioning a sensor and using the app. Do you want the light to echo the picture, or would a steady color be enough?

Size & fit

FFJ specifies this kit for 55–65-inch TVs, particularly 16:9 widescreens. The 14.7ft strip can be cut at marked points, which may help adapt its length to a particular TV within that range. The sensor clips to the top center of the screen, and the strip attaches to the back, so consider whether those areas are accessible before installation.

The package is listed as including the LED strip, sensor clip, power adapter, 12 mounting clips, an alcohol cleaning pad, and a manual. It is intended for indoor use and runs on corded electric power. It makes sense if your TV falls within the stated size range and you want color that responds to screen content. Not the best choice if your TV is outside that range, since the listing only specifies compatibility with 55–65-inch sets.

How to use it

Clean the TV’s back where the strip will go, attach the strip around the rear, and clip the sensor at the top center. The included mounting clips provide additional attachment points. Connect the power adapter, then use the Bluetooth app to set brightness and color or select an available mode. The sensor’s position matters to the intended sync function, so place it where it can read the screen rather than treating this like a standard strip that only needs to be stuck behind the TV.

Is it worth it?

This kit is most relevant if screen-reactive lighting is the goal. A basic RGB strip may suit a buyer who only wants a constant color or simple effects, while the FFJ adds a camera sensor, app adjustments, and automatic on/off behavior. In a gaming setup, the music and movie modes offer alternatives to syncing with the picture, in a home theater, screen matching is the central feature.

The tradeoff is a more involved installation than a strip used only for static backlighting: the sensor needs a place at the top of the TV, and the kit requires a power connection and app setup. Choose it for the sync feature and the specified TV size range, rather than assuming it is simply interchangeable with any ambient light strip.