
BenQ ScreenBar Halo LED Monitor Light Bar - Wireless Controller, Backlight, Adjustable Brightness/Color Temperature, Eye-Care Light Bar, No Screen Glare, Space-Saving, USB Powered Lamp
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AI Verdict
This BenQ light bar with its wireless controller and integrated backlight is for anyone serious about reducing eye strain and clearing desk space.
This light bar is a strong fit for office ergonomic setups due to its core eye-care features like asymmetrical lighting and integrated backlight, which directly address common issues like screen glare and eye strain. Its space-saving design and wide monitor compatibility also make it practical for diverse workspaces.
If you need a light bar with a motion sensor for automatic on/off, look for models that explicitly list 'presence detection' or 'motion sensing' as a feature.
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Pros
- Asymmetrical optical design eliminates reflected glare on the screen, improving eye comfort.
- Integrated backlight with three modes (Front, Back, Front&Back) reduces contrast between screen and surroundings.
- Wireless controller offers over 100 stepless levels of brightness and color temperature adjustment (2700K-6500K).
- Patented weighted clip design mounts on monitors up to 2.36” (6cm) thick, saving desk space.
- Memory function retains preferred brightness and color temperature settings.
- High compatibility with curved monitors up to 1.5” (3.8cm) thick and >1000R curvature.
Cons
- Wireless controller has a 2-second wake-up delay before responding to inputs.
- Backlight intensity is not as strong as some users expect, requiring additional bias lighting for darker environments.
- Controller's glossy finish attracts fingerprints easily.
- Powered via USB-A, which some users consider an outdated connection type.
- Non-planar monitor back designs may interfere with the weighted clip's mounting stability.
Dimension Scores
The asymmetrical optical design eliminates screen glare and the integrated backlight reduces eye strain by balancing screen contrast.
It offers over 100 stepless levels for brightness and color temperature (2700K-6500K), along with three distinct lighting modes and auto-dimming.
Constructed from aluminum alloy with a weighted clip, users describe it as feeling premium and durable.
The metallic grey aluminum design is sleek and modern, contributing to a clean desk aesthetic.
Best For
- Individuals working long hours in front of a monitor who experience eye strain.
- Users seeking a minimalist desk setup without traditional desk lamps taking up space.
- People with curved monitors who struggle to find compatible light bars without glare.
- Anyone needing precise control over desk illumination with adjustable brightness and color temperature.
Not Recommended For
- Users on a strict budget looking for the cheapest light bar solution.
- Those who require a very bright backlight for strong ambient room lighting effects.
- Individuals who dislike battery-powered accessories, as the wireless controller uses 3 AAA batteries.
Watch Out For
- The wireless controller requires a 2-second wake-up before it registers inputs, which can be annoying during use.
- Some users report the backlight isn't as bright as anticipated, leading them to purchase separate bias lighting.
- The controller's glossy surface shows fingerprints prominently, requiring frequent cleaning.
- Powering the light bar via an insufficient 5V/1.5A USB supply can cause flickering or only the front light to function.
- The USB-A power cable is considered outdated by some, despite its widespread compatibility.
Full Specifications
| UPC | 840046045265 |
| ASIN | B08WT889V3 |
| Size | 15 x 50 x 10.2 cm |
| Brand | BenQ |
| Color | Gray |
| Shape | Asymmetrical |
| Style | Minimalist |
| Theme | Space |
| Finish | Metallic |
| Pattern | Solid |
| Voltage | 5 Volts |
| Wattage | 6.5 watts |
| Material | Aluminum |
| Batteries | 3 AAA batteries required. (included) |
| Bulb Base | BA20S |
| Lamp Type | Desk Lamp |
| Room Type | Usb,Wireless |
| Brightness | 800 Lux |
| Efficiency | 20 lumens per watt |
| Model Name | ScreenBar Halo |
| Finish Type | Metallic |
| Item Weight | 1.76 pounds |
| Light Color | Cool White |
| Part Number | 9H.W49WT.ES4 |
| Shade Color | Matte Grey |
| Switch Type | Touch |
| Is Cordless? | No |
| Manufacturer | BenQ |
| Power Source | USB and battery |
| Shade Height | 3 Inches |
| Base Material | Aluminum |
| Is Waterproof | false |
| Mounting Type | Tabletop |
| Control Method | Remote |
| Shade Material | Metal |
| Bulb Shape Size | ED28 |
| Lighting Method | Adjustable |
| Number of Items | 1 |
| Special Feature | Adjustable Color Temperature, All-round Illumination: Front, Back, Both, Auto dimming, Dimmable, Memory |
| Number of Pieces | 1 |
| Product Benefits | Dimmable |
| Special Features | Adjustable Color Temperature, All-round Illumination: Front, Back, Both, Auto dimming, Dimmable, Memory |
| Assembly Required | No |
| Battery Cell Type | Alkaline |
| Installation Type | Hanging |
| Item model number | ScreenBar Halo |
| Light Source Type | LED |
| Sensor Technology | Analogue |
| Product Dimensions | 3.73"D x 19.7"W x 3.82"H |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Included Components | Power Cable |
| Indoor/Outdoor Usage | Indoor |
| Warranty Description | 1 year. |
| Item Package Quantity | 1 |
| Water Resistance Level | Not Water Resistant |
| Number of Light Sources | 1 |
| Specific Uses For Product | Computer monitor light bar for studio working, reading, studying, designing, editing in personal space and personal studio, clips on monitors with thickness from 0.28" to 1.57" including curved ones |
| Global Trade Identification Number | 00840046045265 |
What Buyers Say
Many users upgrading from cheaper screen bars immediately notice a significant improvement in eye comfort and the absence of direct light shining into their eyes with the BenQ ScreenBar Halo. The wireless controller is a standout feature for its tactile feel and ease of use, though its 2-second wake-up time is a minor annoyance. While the backlight is appreciated for ambient lighting, some find it less intense than expected, occasionally supplementing it with other bias lighting. The light bar's ability to eliminate screen glare is consistently praised, making it a favorite desk accessory for those working long hours.
“Okay, so I thought my old screen bar was doing the job, but this BenQ Halo is seriously a game-changer for my eyes, no more squinting at night, even with my ultrawide, though that controller does take a sec to wake up, which is kinda annoying.”
Common Praise
- Eliminates screen glare completely, even on curved monitors.
- Wireless controller is smooth, satisfying to use, and feels premium.
- Integrated backlight helps balance ambient light and reduces eye strain.
- Space-saving design keeps the desk clear of traditional lamp bases.
- Wide range of color temperature (2700K-6500K) and brightness adjustments.
- Solid build quality with aluminum construction and a stable weighted clip.
Common Complaints
- Wireless controller has a noticeable 2-second delay before responding to inputs.
- Backlight is not always bright enough for users expecting strong bias lighting.
- Glossy finish on the wireless controller easily collects fingerprints.
- USB-A power connection is seen as outdated by some users.
- The light bar can reflect on the clip itself, which some users find distracting.
- Some users found the white light at 6500K not 'white enough' compared to cheaper alternatives.
Ownership Tips
- The wireless controller's batteries (3 AAA) last a surprisingly long time, similar to a TV remote.
- The auto-dimming feature works well, but some prefer to manually set their preferred brightness and color temperature.
- Even with the backlight, some users still add LED strips for stronger bias lighting, especially in very dark rooms.
- The light bar's angle can be adjusted slightly, which helps direct the light precisely onto the desk area.
- The weighted clip is effective and doesn't damage the monitor, even with frequent adjustments.
Frequently Asked Questions
Does the BenQ ScreenBar Halo work with curved monitors?
Yes, it's designed to fit curved monitors with a thickness up to 1.5 inches (3.8cm) and a curvature greater than 1000R.
Is the controller wired or wireless?
The BenQ ScreenBar Halo comes with a smart wireless controller that operates on 2.4GHz and uses three AAA batteries.
Does it have an auto-dimming feature?
Yes, it includes a real-time auto-dimming feature that adjusts the light to 500 Lux based on ambient light conditions.
Can I adjust the color temperature and brightness?
Absolutely, the wireless controller allows for over 100 stepless levels of brightness and color temperature adjustments, ranging from 2700K to 6500K.
Will this light bar cause glare on my screen?
No, its upgraded asymmetrical optical design is specifically engineered to ensure no reflected glare on your screen.
What kind of USB port does it use for power?
The ScreenBar Halo is USB-A powered and requires a 5V/1.3A power supply for optimal function.
Can I use only the front light or only the backlight?
Yes, the light bar offers three eye-care setting modes: front light only, back light only, or both lights simultaneously.
Buying Guide
When you're looking at monitor light bars, you're essentially trying to light up your desk without lighting up your screen or your face. The key is how well it directs light downwards onto your workspace while preventing glare on your monitor. Also, consider if you want extra light behind your monitor to reduce eye strain from screen contrast, and how you'll control the light's settings.
Asymmetrical Optical Design
This means the light is shaped so it shines only on your desk and keyboard, not directly onto your monitor screen. Think of it like a spotlight that only hits the stage, not the audience's eyes.
Integrated Backlight
This is extra light that shines behind your monitor onto the wall. It helps reduce the harsh contrast between a bright screen and a dark background, making it easier on your eyes, similar to how bias lighting behind a TV works.
Adjustable Color Temperature (e.g., 2700K-6500K)
This lets you change the 'warmth' or 'coolness' of the light. Warmer light (lower K) is often preferred in the evenings to reduce blue light exposure, while cooler light (higher K) can help with focus during the day.
Wireless Controller
Having a separate, often weighted, dial on your desk means you don't have to reach over your monitor to adjust settings. It's like having a remote control for your desk light, making adjustments quick and convenient.
Alternatives
If this model doesn't fit, look for light bars with USB-C power for modern setups, or those with presence detection if you want automatic on/off functionality without touching a controller.



