
BenQ ScreenBar Pro LED Monitor Light Bar (Black) - Ultrawide Lighting, Motion Sensor, Adjustable Brightness/Color Temperature, Eye-Care USB-C Monitor lamp, No Glare, Curved Monitors, Monitor accessory
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AI Verdict
This 1.76-pound monitor light bar delivers over 1000lx central brightness across a 33"x20" area, with a motion sensor and a patented clamp for 0.17"-2.56" thick monitors, ideal for eye comfort and des
The ScreenBar Pro is a strong fit for users prioritizing eye comfort and efficient desk lighting, offering a wide 33"x20" illumination area and asymmetrical optics to prevent screen glare. Its patented clamp supports a broad range of monitor thicknesses (0.17"-2.56") and curvatures (1000-1800R), making it adaptable to many setups.
If you need a light bar with a wireless controller or a backlight feature, look for models that explicitly list those capabilities.
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Pros
- Provides over 1000lx central brightness and a 500lx range within a 33"x20" (85cmx50cm) area, enhancing desk illumination.
- Features asymmetrical optics to prevent screen reflection and direct glare, lighting the desktop without shining on the monitor.
- Includes an ultrasonic motion sensor that detects movement within a 24"±4" (60cm±10cm) diameter, automatically turning on/off after 5 minutes of absence.
- Patented clamp design accommodates monitors 0.17"-2.56" (0.43cm-6.5cm) thick and 1000-1800R curvature, including those with special back designs.
- Offers 16 brightness levels and 8 color temperature settings ranging from 2,700K to 6,500K, with a Color Rendering Index (CRI) greater than 95.
- Powered via USB-C, with an included adapter, and integrates function buttons directly on the bar for adjustments, saving desk space.
Cons
- Touch controls for brightness and color temperature can require a firm press to register, leading to frustration for some users.
- The fixed USB-C cable is wired onto the base, meaning it cannot be replaced if damaged or if a longer cable is needed.
- The clamp mechanism, while patented, has been reported by some users to shift slightly after a few days, requiring manual readjustment.
- Despite asymmetrical optics, some users report it does not completely eliminate glare in all bright room conditions.
- Lacks a built-in webcam mount, requiring a separate accessory for users who wish to place a webcam above the monitor.
Dimension Scores
Offers flicker-free illumination, reduces blue-light hazards, and provides a wide 33"x20" lighting area calibrated to 500 lx for eye comfort.
Features 16 brightness levels, 8 color temperature settings (2700K-6500K), an adjustable lamp head, and automatic brightness adjustment based on ambient light.
Constructed from Acrylonitrile Butadiene Styrene, Aluminum, Polycarbonate, and Zinc, weighing 1.76 pounds, indicating a durable build.
Features a minimalist and practical design that sits unobtrusively on top of the monitor, though some users find the Halo model more 'sleek'.
Best For
- Individuals seeking broad, consistent illumination for a 33"x20" desktop area without screen glare.
- Users with limited desk space who need a light source that mounts directly onto their monitor.
- Professionals who spend extended hours in front of flat, curved (1000-1800R), or ultra-thin monitors (0.17"-2.56" thick) and prioritize eye comfort.
- Anyone wanting automatic lighting control with a motion sensor to conserve energy and provide instant illumination upon arrival.
Not Recommended For
- Users who prefer physical buttons or a remote control for light adjustments.
- Those needing a backlight feature for ambient room lighting, as this model focuses solely on front illumination.
- Individuals with monitors under 24 inches, as the light bar's length might be disproportionate.
Watch Out For
- The touch controls can be finicky, often requiring a long press or multiple taps to register adjustments for brightness or color temperature.
- The clamp, while designed for various monitors, has been noted to move slightly over time, necessitating occasional repositioning.
- The USB-C power cable is permanently attached to the light bar, preventing replacement if it gets damaged or if a different length is desired.
- Some users report that the 'no glare' claim isn't absolute, and glare can still be an issue in rooms with significant natural light.
- The motion sensor, while convenient, may turn off the light after 5 minutes if no significant movement is detected, even if a user is present but stationary.
Full Specifications
| ASIN | B0CZ9P1QW9 |
| Size | Small |
| Brand | BenQ |
| Color | Black |
| Shape | Rectangular |
| Style | Modern |
| Voltage | 5 Volts (DC) |
| Wattage | 5 watts |
| Material | Acrylonitrile Butadiene Styrene, Aluminum, Polycarbonate, Zinc |
| Batteries | 1 Nonstandard Battery batteries required. |
| Bulb Base | BA21D |
| Lamp Type | monitor lamp |
| Room Type | Dining Room, Living Room, Office |
| Brightness | 1000 Lux |
| Efficiency | High Efficiency |
| Model Name | ScreenBar Pro |
| Finish Type | Polished |
| Item Weight | 1.76 pounds |
| Light Color | cool white, warm white |
| Part Number | 9H.W4KWT.US3 |
| Shade Color | Black |
| Switch Type | Touch |
| Finish types | Polished |
| Is Cordless? | No |
| Manufacturer | BenQ |
| Power Source | Corded Electric |
| Shade Height | 9.2 Centimeters |
| Base Material | Aluminum |
| Is Waterproof | False |
| Mounting Type | Desktop |
| Control Method | Touch |
| Shade Material | Metal |
| Lighting Method | LED |
| Number of Items | 1 |
| Special Feature | Adjustable Color Temperature, Patented Clamp, Ultra-wide Illumination |
| Number of Pieces | 1 |
| Product Benefits | enhances eye comfort and productivity with ultra-wide illumination and energy-saving motion sensor |
| Special Features | Adjustable Color Temperature, Patented Clamp, Ultra-wide Illumination |
| Installation Type | Clamp-mounted |
| Item model number | 9H.W4KWT.WS2 |
| Light Source Type | LED |
| Sensor Technology | ultrasonic |
| Product Dimensions | 5.31"D x 19.68"W x 3.62"H |
| Batteries Included? | No |
| Batteries Required? | No |
| Included Components | Transformer, lamp fixture |
| Indoor/Outdoor Usage | Indoor |
| Water Resistance Level | Not Water Resistant |
| Number of Light Sources | 1 |
| Specific Uses For Product | Dim room, Gaming setup, Home office, Monitor, Office |
| Recommended Uses For Product | Reading, Task Lighting |
| Global Trade Identification Number | 04718755093227 |
What Buyers Say
Many users are surprised by how much the ultrawide illumination improves their workspace, especially for tasks requiring a well-lit desk area. The motion sensor is frequently praised for its convenience, automatically turning the light on when you sit down. However, the touch controls on the bar itself can be a point of contention, with some finding them less responsive than desired. While the asymmetrical lighting is effective at reducing screen glare for most, a few users in very bright environments still experience some reflection. The fixed USB-C cable is a minor but recurring complaint.
“Honestly, this light makes my desk feel so much better, but those touch buttons drive me nuts sometimes, I just want to tap it once and have it work! And yeah, it's not cheap, but my eyes feel way less tired after 8 hours.”
Common Praise
- The 33"x20" illumination area provides ample light across the entire desk without needing a separate lamp.
- The motion sensor automatically turns the light on and off, adding a layer of convenience and energy saving.
- Asymmetrical optics effectively prevent light from shining on the monitor screen, reducing eye strain.
- The clamp design fits a wide range of monitor thicknesses (0.17"-2.56") and curvatures (1000-1800R) securely.
- High Color Rendering Index (CRI > 95) ensures accurate color representation under the light.
- The ability to save a favorite brightness and color temperature setting is a useful feature for quick recall.
Common Complaints
- The touch-sensitive buttons on the light bar can be unresponsive, requiring multiple or firm presses to adjust settings.
- The clamp sometimes shifts on the monitor after a few days, requiring manual repositioning.
- The USB-C power cable is permanently attached to the unit, limiting flexibility and replacement options.
- Despite claims, some users still experience glare on their screen, particularly in brightly lit rooms.
- The automatic shut-off after 5 minutes of no motion can be annoying if you're present but very still.
- The price point is considered high by some, especially compared to generic alternatives.
Ownership Tips
- The clamp might need occasional minor adjustments to stay perfectly centered on the monitor.
- Learning the precise pressure and duration for the touch controls takes a bit of getting used to.
- The motion sensor's sensitivity means if you're just staring at your screen without much movement, it might turn off.
- While it illuminates the desk well, it doesn't replace ambient room lighting for overall brightness.
- The included power adapter is a plus, especially if your monitor lacks a suitable USB-C port for power.
Frequently Asked Questions
Does the BenQ ScreenBar Pro work with curved monitors?
Yes, the ScreenBar Pro is designed to be highly compatible with curved monitors, supporting curvatures from 1000R to 1800R. Its patented clamp ensures a stable fit on such screens.
How effective is the glare reduction feature?
The ScreenBar Pro uses asymmetrical optics to direct light onto your desktop and away from your screen, aiming to prevent reflection and direct glare. While many users find it effective, some report that it doesn't completely eliminate glare in very bright room conditions.
What are the power options for the ScreenBar Pro?
The light bar is powered via USB-C. It can be plugged into a monitor's USB-C port or directly into a wall outlet using the included 15W charging brick.
Does it have a remote control?
No, the ScreenBar Pro does not include a remote control. Adjustments for brightness and color temperature are made using touch-sensitive buttons located directly on the light bar.
What is the difference between the ScreenBar Pro and the ScreenBar Halo?
The ScreenBar Pro focuses on broad, uniform front illumination and includes a motion sensor. The ScreenBar Halo, while also providing front lighting, features a more stylized design, a wireless controller, and a backlight to create a 'halo' effect around the monitor. The Pro has a higher max brightness (8.5W vs 6.5W for Halo).
Buying Guide
When looking at monitor light bars, you're essentially buying targeted illumination for your desk, not your whole room. The goal is to light up your keyboard, documents, and immediate workspace without creating glare on your screen or shining directly into your eyes. This saves desk space compared to a traditional lamp and can significantly reduce eye strain during long work sessions. It's about creating a comfortable, focused lighting environment right where you need it.
Illumination Area (e.g., 33"x20")
This tells you how much of your desk will actually be lit up. A larger area means more of your workspace is evenly illuminated, reducing harsh shadows and making it easier to see physical items on your desk, like notebooks or a keyboard. Think of it like a spotlight for your entire desk, not just a small circle.
Color Temperature (e.g., 2700K-6500K)
This refers to the 'warmth' or 'coolness' of the light, measured in Kelvin (K). Lower numbers (like 2700K) are warm, yellowish light, good for relaxing. Higher numbers (like 6500K) are cool, bluish-white light, which can help with focus. A wide range lets you match the light to your mood or task, from a cozy evening to a bright, productive afternoon.
Monitor Compatibility (Thickness & Curvature)
This is crucial for ensuring the light bar actually fits your monitor. If your monitor is too thick, too thin, or has a significant curve, a generic clamp might not work. Checking these specs guarantees a stable and secure fit, preventing the light bar from wobbling or falling off.
Alternatives
If this model doesn't fit your needs, look for alternatives with a wider range of monitor thickness support, a physical control dial or wireless remote, or an integrated webcam mount if those features are important to your setup.



