BenQ
BenQ ScreenBar Halo 2
BenQ ScreenBar Halo 2 adds asymmetric front light, rear ambient backlight, a wireless dial, and auto on/off for monitor setups that need glare-free desk illumination.
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Our review
Halo 2 is a monitor-mounted LED bar with BenQ’s asymmetric front optics, a wide rear backlight, wireless controller, and ambient-light sensing. The listing cites stepless brightness, 2700K to 6500K color temperature, clamp fit for 0.17 to 2.36 inch thick panels, and curved screens from 1000R to 1800R.
Reviewers report less eye strain versus desk lamps, easy dial control, and useful rear glow for contrast with dark walls. Motion and monitor-linked auto modes keep the bar out of the way compared with traditional lamp arms.
Complaints include premium cost versus generic bars, dependence on AAA batteries in the wireless dial, and fit quirks on unusually thick or curved monitors despite the wide clamp range. It is overkill for occasional laptop use. Skip if you want a budget USB-only bar without extras.
Pros and cons
What we like
- Asymmetric front light designed to avoid screen glare
- Rear backlight reduces wall/screen contrast
- Wireless dial with brightness and color temp control
- Fits many flat and curved monitors per clamp spec
What to watch
- Wireless controller uses replaceable batteries
- Clamp range still may not fit every monitor bezel
- Costs several times more than basic USB bars
- Feature set exceeds what casual users need
Specifications
| Color temperature | 2700K–6500K |
|---|---|
| Clamp range | 0.17–2.36 in thick screens |
| Curved support | 1000R–1800R (per listing) |
| Control | Wireless dial controller |
| LED lifespan | 50,000+ hours (tested) |
| Power | USB electrical cable |
Who it's for
- All-day monitor work with eye strain concerns
- Curved or ultrawide desks needing even light
- Users who want backlight plus front bar in one
The verdict
Still the benchmark monitor light if you will use the dial, sensors, and backlight daily. Budget for batteries and confirm clamp depth against your display before ordering.
Compared head-to-head
Where we recommend it
- The Best Monitor Light Bars for Home Office in 2026, Reviewed & Compared
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