Govee Flow Plus Smart LED Light Bar

The Govee Flow Plus is a pair of smart LED light bars that sit behind a monitor or TV to add ambient bias lighting. You plug them into a USB port, place them behind the screen, and control the colors and effects through the Govee Home app or voice assistants. This article explains what the Flow Plus does, how it works, what to consider before buying, and how it compares to similar options.

Formula

Energy used (kWh) = (time on in hours × power draw per bar in watts × 2 bars) / 1000.

Cost = energy used × electricity rate per kWh.

Variables: t = hours powered on, p = watts consumed by one bar, 2 = number of bars, 1000 = converts watts to kilowatts.

Worked Example

Using the defaults: t = 8 hours, p = 10 watts per bar.

Energy = (8 × 10 × 2) / 1000 = 160 / 1000 = 0.16 kWh.

Cost at $0.15/kWh = 0.16 × 0.15 = $0.024 per day.

So running the Flow Plus for 8 hours daily costs about 2.4 cents a day, or roughly $0.73 a month.

What Is the Govee Flow Plus?

The Flow Plus is a set of two LED light bars designed to sit vertically behind a monitor or TV. Each bar is about 12 inches tall and has a row of individually addressable LEDs. The bars connect to a control box via cables, and the control box plugs into a USB power source (5V/2A recommended). The control box has physical buttons for power, brightness, and color, but the full feature set lives in the Govee Home app.

The main selling point is the camera-based screen sync. A small camera clips onto the top of your monitor and points at the screen. The app analyzes the colors on the display and projects matching colors onto the wall behind it, creating a halo effect that makes the image feel larger and more immersive. Unlike some other sync systems that require HDMI passthrough or software on a PC, the Flow Plus works with any video source—console, streaming stick, cable box, or PC—because the camera watches the actual screen.

How the Camera Sync Works

The camera captures a low-resolution image of the screen, and the Govee Home app processes it in real time. The app divides the screen into zones and assigns each LED bar a color based on the average color of the corresponding zone. You can adjust the sync speed, brightness, and saturation in the app. The camera has a light shield (a small foam piece) that blocks glare from the screen, and you calibrate it by placing white circles on the screen during setup.

Because the camera is optical, it works regardless of the video source. There is a slight latency—typically 50 to 100 ms—but for most ambient lighting purposes it feels responsive. Fast-paced competitive gaming might show a small delay, but casual gaming and movie watching are generally fine.

Setup and Placement

Setting up the Flow Plus takes about 15 minutes. The box includes two light bars, a control box, a camera with a clip, a USB cable, and adhesive mounts. You attach the camera to the top of your monitor, centered. The light bars stick to the back of the monitor or TV using the included adhesive strips, with the LEDs facing the wall. The bars should be placed vertically, roughly at the edges of the screen, about 2 to 4 inches from the edge.

After mounting, you plug the USB cable into a power source. The control box has a USB-A connector, so you can use a phone charger or a USB port on your TV. The Govee Home app walks you through Wi-Fi setup and calibration. During calibration, the app shows white circles on the screen, and you adjust the camera position until the circles are centered in the app’s preview.

App Features and Voice Control

The Govee Home app (available for iOS and Android) is the central hub. You can choose from a library of preset scenes, create custom colors, set schedules, and use a music mode that reacts to ambient sound via the phone’s microphone. The app also supports group control if you have other Govee devices.

Voice assistants are supported: Alexa and Google Assistant can turn the lights on/off and change colors with simple commands like “Alexa, set the light bar to blue.� The Flow Plus does not support Apple HomeKit natively. The app requires a Govee account, and the device connects over 2.4 GHz Wi-Fi. Bluetooth is used for initial setup, but after that, Wi-Fi is the primary connection.

Common Problems and Troubleshooting

Users sometimes report the camera sync not matching colors accurately. This is usually a calibration issue—make sure the camera is centered and the room is not too bright. Direct sunlight or strong overhead light can wash out the camera’s view. Also, the camera’s field of view should cover the entire screen; if the monitor is very large (over 32 inches), the camera might not capture the edges, causing the sync to be off.

Another common issue is the lights not turning on when the TV is off. The USB port on many TVs provides power only when the TV is on. If you want the lights to stay on, plug them into a wall adapter instead. If the lights flicker or dim, the USB source might not provide enough current—use the included adapter or a 5V/2A adapter.

If the app cannot find the device, try resetting the control box (hold the power button for 5 seconds) and re-adding it. Ensure your phone is on the same 2.4 GHz network; some routers combine 2.4 and 5 GHz bands, which can cause issues. In that case, temporarily disable the 5 GHz band or use the Govee app’s “AP mode� for setup.

Comparison with Other Govee Models and Alternatives

Govee sells several similar products. The original Flow Pro (no longer widely sold) used a camera as well. The newer Govee AI Gaming Sync Box uses an HDMI 2.0 passthrough and does not require a camera, but it only works with HDMI sources and supports 4K at 60 Hz. The Flow Plus is a more affordable option that works with any source, but it relies on the camera.

Other brands like Philips Hue Play offer HDMI sync boxes that are more accurate but cost significantly more. The Hue Play bars themselves are about twice the price per bar, and the sync box adds another $200+. The Flow Plus is a budget-friendly middle ground, offering decent sync quality for a fraction of the cost.

If you do not need screen sync, a simple static bias lighting strip behind the TV can be cheaper. But the Flow Plus adds dynamic color that follows the content, which many find enhances immersion.

Cost and Value

The Flow Plus typically retails around $50–$60, though prices vary. Given that it includes two bars, a camera, and the control box, it is a good value for the features. Running the lights costs very little—about 0.16 kWh per day at 8 hours, which is under a dollar a month on most electricity rates.

One thing to consider: the camera sits on top of the monitor, which some find visually intrusive. The camera is small and black, but it is visible. If you have a very thin bezel, the clip might not fit securely. The adhesive mounts are strong but not repositionable once stuck—peel them off carefully if you need to move them.

Frequently Asked Questions

Does the Govee Flow Plus work with a TV? Yes, it works with any screen that has a flat top edge where the camera can clip. For TVs, the camera clips to the top bezel. The adhesive strips stick to the back of the TV. Just ensure the TV has a USB port or use a wall adapter for power.

Can I use the Flow Plus without the camera? Yes. You can use the app to set static colors, scenes, or music mode without the camera. The camera is only needed for screen sync. The lights function normally as ambient lighting without it.

Does the camera sync work with HDR or Dolby Vision? The camera sees the screen as displayed, so it will sync with HDR content, but the colors may not be perfectly accurate because the camera and the app process the image. It is not a 1:1 match, but it gives a pleasing effect. Some users notice slight oversaturation.

Can I extend the cable length? The included cables between the bars and the control box are about 6 feet long. You cannot extend them with standard cables because they use proprietary connectors. The USB cable from the control box to power can be replaced with a longer one if needed.

Does the Flow Plus work with Razer Chroma or other RGB software? No, the Flow Plus does not integrate with PC RGB software like Razer Chroma or ASUS Aura. It works only through the Govee Home app and voice assistants. For PC integration, you would need a Govee product with a USB or HDMI connection, such as the Govee AI Gaming Sync Box.

Is the Flow Plus worth it for gaming? For casual and single-player games, yes, the sync adds immersion. For competitive multiplayer, the latency might be noticeable, but many players still enjoy the effect. If you want zero latency, an HDMI sync box is better, but it costs more.

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in t | Time on | hours | 8 | 0 | 24
in p | Power draw per bar | watts | 10 | 0 | 50
out e | Energy used | kWh | (t * p * 2) / 1000 | 2
out c | Cost at $0.15/kWh | $ | e * 0.15 | 2