The BenQ ScreenBar Halo 2 is the best task light for monitor-based work, clipping onto the screen to flood the desk with over 1,000 lux of glare-free, CRI-95+ light while a tri-zone backlight eases eye strain. Tom's Guide has named the ScreenBar line the best desk light for computer setups two years running, and reviewers from XDA to AppleInsider call it a real quality-of-life upgrade. It is pricey and most useful in dim rooms, but for desk work it leads the category.
Full review
Real-World Performance
The BenQ ScreenBar Halo 2 solves a problem most desk lamps create: glare on a monitor. By clipping to the top of the screen and casting an asymmetric beam forward onto the desk rather than straight down, it lights the work surface without bouncing reflections off the display. Tom's Guide has rated the ScreenBar line the best desk light for computer setups two years in a row, and AppleInsider, scoring the Halo 2 a full five stars, called it a huge quality-of-life upgrade for anyone who lives at their desk.
The light is genuinely capable. BenQ rates the front output at over 1,000 lux of center illuminance from a 50cm height, with a full-spectrum LED chip delivering a color-rendering index above 95 for accurate color. HowToGeek, while more measured at 7/10 on value, conceded that for a dark workspace lacking overhead lighting, the Halo 2 is on a whole other level. The practical result is even, bright, reflection-free light exactly where a desk worker needs it.
Build Quality and Design
The Halo 2 is a premium product and feels like one. It clips securely to flat or curved monitors with a counterweighted mount that requires no tools and takes up zero desk space, a major advantage over traditional lamps that consume real estate. XDA Developers praised its coverage, limited display reflections and easy adjustments, summarizing it as the best way to add extra light to a desk setup.
The standout design feature is the tri-zone rear backlight, which BenQ widened significantly over the original Halo. By casting a soft glow on the wall behind the monitor, it reduces the harsh contrast between a bright screen and a dark wall, which is a real source of eye strain during long sessions. The front illuminance can dim much lower than the previous generation, too, making it comfortable in very dark rooms.
Controls and Everyday Use
Control is handled by a wireless puck controller that sits on the desk, letting users adjust brightness and color temperature, anywhere from 2700K warm to 6500K cool, without reaching behind the monitor. The Halo 2 also includes a motion sensor that turns the light on when you sit down and powers it off after you leave, a convenience that the ScreenBar Pro shares.
Day to day, the combination of the puck, the auto-on sensor and the wide front-and-back lighting makes the Halo 2 feel effortless: sit down, the desk lights up with the last-used settings, and the screen stays glare-free. It is USB-powered, so it draws from a monitor or hub port or the included adapter, with no separate outlet needed for the bar itself.
Where It Falls Short
The Halo 2's biggest drawback is price. At around $179 it costs far more than a capable basic desk lamp, and HowToGeek specifically flagged that less expensive options may be a better fit for buyers on a budget. The rear backlight, while excellent, delivers its biggest benefit in darker rooms, so buyers in bright, well-lit offices will get less from that feature.
It is also a focused tool rather than a general light: it illuminates the desk area directly in front of the monitor, not a wide work surface or a room, so it is not a substitute for an articulating task lamp when lighting a drawing board or a craft area off to the side. And because it is USB-powered, it needs a free port or the adapter to run.
How It Compares to Alternatives
Within this list, the Halo 2 is the flagship monitor light bar, with the BenQ ScreenBar Pro as its close sibling, differing mainly in mounting and the Pro's edge in raw brightness. Against the traditional lamps here, the difference is fundamental: the BenQ eReading LED Desk Lamp, Dyson Solarcycle Morph and TaoTronics LED Desk Lamp (TT-DL13) all sit on the desk and light a work area, while the Halo 2 clips to the screen and lights the space in front of it without any desk footprint.
For a buyer whose work is overwhelmingly at a monitor, the Halo 2's glare-free, space-saving design makes it the smarter choice. For someone who needs to light a physical task area away from the screen, an articulating lamp is the better tool, which is why the lineup includes both kinds.
Who It's Best For
The BenQ ScreenBar Halo 2 is best for monitor-based knowledge workers who spend long hours at a screen and want bright, glare-free, color-accurate desk lighting that adds no clutter and actively reduces eye strain. The tri-zone backlight makes it especially valuable for anyone working in a dim room or at night.
It is the wrong pick for a buyer on a tight budget, for someone who needs to light a wide physical work area, or for a workspace that is already brightly lit. But for the core use case of comfortable computer work, it is the best-regarded option in the category, which earns it the top spot.
Value at This Price
At around $179, the Halo 2 is undeniably a premium spend, and HowToGeek's 7-out-of-10 score reflected exactly that tension: the lighting is excellent, but the price asks buyers to value the specific benefits highly. Where the value crystallizes is for someone who spends most of their working day at a monitor, since the glare reduction, color accuracy and eye-strain-easing backlight directly target the discomfort of long screen sessions.
Compared with the cost of a quality monitor or chair, the Halo 2 is a small addition that meaningfully improves daily comfort, which is the framing AppleInsider used in calling it a huge quality-of-life upgrade. For a casual user who only occasionally sits at a desk, the value is harder to justify, and the ScreenBar Pro or a budget lamp would serve better. But for the dedicated desk worker, the Halo 2 earns its price through everyday comfort that cheaper lights cannot match.
Strengths
- +Asymmetric front light delivers over 1,000 lux with no glare or reflections on the screen
- +Tri-zone rear backlight reduces eye strain by balancing the bright screen against the wall behind it
- +Wireless puck controller adjusts brightness and color temperature without reaching behind the monitor
- +Full-spectrum LED with CRI above 95 renders colors accurately for detail work
- +Clips onto the monitor and takes up zero desk space, fitting flat and curved screens
Watch-outs
- −Premium price is high for a light bar versus a basic desk lamp
- −Backlight benefit is mostly noticeable in darker rooms
- −USB-powered, so it needs a free port or the included adapter
- −Only lights the desk in front of the monitor, not a wider work area
How it compares
The best pick for monitor work, where the BenQ ScreenBar Pro is its motion-sensor sibling and the only other light bar here. Unlike the traditional articulating BenQ eReading LED Desk Lamp, Dyson Solarcycle Morph and TaoTronics LED Desk Lamp (TT-DL13), it occupies zero desk space by clipping to the screen, but it lights only the area in front of the monitor.
Who this is for
At a glance: Monitor-based knowledge workers who want glare-free desk lighting that adds no desk clutter and reduces eye strain during long screen sessions.
Why you’d buy the BenQ ScreenBar Halo 2
- Asymmetric front light delivers over 1,000 lux with no glare or reflections on the screen.
- Tri-zone rear backlight reduces eye strain by balancing the bright screen against the wall behind it.
- Wireless puck controller adjusts brightness and color temperature without reaching behind the monitor.
Why you’d skip it
- Premium price is high for a light bar versus a basic desk lamp.
- Backlight benefit is mostly noticeable in darker rooms.
- USB-powered, so it needs a free port or the included adapter.
Rating sources
“If you live at your desk, and I'm willing to bet most of you do, this is honestly a huge quality of life upgrade.”
“This premium monitor light is fantastic for dim workspaces; the ScreenBar Halo 2 is on a whole other level for my darkest workspace.”
“It's the best way to add some extra light to your desk setup, with great coverage, limited display reflections, and easy adjustments.”
Our 4.7 score is the average of these published ratings. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
