Official product photos: BenQ · source More photos on Amazon
BenQ ScreenBar Halo 2 LED Monitor Light Bar with Wireless Controller
Lights your desk, not your screen: glare-free task light, a soft backlight and one-tap auto-dimming to 500 lux.
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- 500 lux over an 85 × 50 cm area
- Tri-zone backlight, 2700K–6500K
- Wireless controller + motion sensor
- Fits curved monitors (1000R–1800R)
At a glance
Our verdict
—If you work or study at a screen in the evening, this is one of the most comfortable upgrades you can make: even desk light, no screen glare and a backlight that eases dark-room eye strain. It costs far more than basic light bars,...
RightScore appears once live prices from licensed store feeds are connected — we never guess a number.
Read the full verdict0.8 kg
Net weight
Best for
- Home office
- Studying
- Office
- Reading
Best thing: Even, glare-free desk lighting
Honest catch: Needs a 5 V / 3 A USB-C power source (up to 15 W)
Our verdict
If you work or study at a screen in the evening, this is one of the most comfortable upgrades you can make: even desk light, no screen glare and a backlight that eases dark-room eye strain. It costs far more than basic light bars, and it needs a USB-C power source that can supply 5 V / 3 A.
Why you’ll like it
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01
Precise optics with an 18° cut-off angle put light on your desk and keyboard, not on the screen or in your eyes.
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02
One tap auto-dims to the recommended 500 lux, held evenly across an 85 × 50 cm area.
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03
The backlight behind the monitor (2700K–6500K) softens the jump between a bright screen and a dark room.
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04
An ultrasonic sensor notices when you leave the desk and switches the light off after about five minutes.
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05
Flicker-free (IEEE PAR 1789) and approved as free of blue-light hazard (IEC TR 62471).
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06
Takes no desk space and fits flat or curved monitors 0.43–6 cm thick.
Great for
- People who work or study at a screen after dark
- Small desks with no room for a lamp
- Curved and ultrawide monitor users
Maybe skip it if
- Your monitor has no USB-C power source nearby
- You only need basic desk light — a simpler light bar will do
Where it shines
How well it suits each use, based on its specifications.
- Home office Great
- Studying Great
- Office Good
- Reading Good
- Creators Good
Pros & cons
Pros
- Even, glare-free desk lighting
- Adjustable backlight for dark rooms
- Wireless controller, up to 3 months per charge
- Motion sensor switches it off when you leave
- Works on curved monitors
Cons
- Needs a 5 V / 3 A USB-C power source (up to 15 W)
- Costs far more than basic light bars
- The webcam mount is an optional accessory
Based on the maker’s specifications and published information — every point is checked against a named source.
Where to buy
Stores we link to in US. We show a price only when it is live.
Amazon
Amazon shows the live price and stock
Live price on Amazon
Prices change often, so we send you to Amazon for the current one instead of showing an old price.
We may earn a commission when you buy through our links. It never changes how we rank products. How we make money
More stores and live prices are added automatically as we connect store feeds.
Specifications
Design
- Monitor compatibility
- Thickness 0.43–6 cm; flat or curved 1000R–1800R
- Material
- Aluminium alloy, PC/ABS
Dimensions
- Lamp size (W × D × H)
- 50 × 14.3 × 10.9 cm
Features
- Backlight colour temperature
- 2700–6500 K
- Presence sensor
- Ultrasonic, detects 60 ± 10 cm in front of the screen
- Controller
- Wireless, rechargeable, up to 3 months per charge; pairs with 2 bars
- Eye-care certifications
- Flicker-free (IEEE PAR 1789), no blue-light hazard (IEC TR 62471)
Performance
- Max illuminance
- > 1,000 lux at 50 cm
- Lighting coverage
- 85 × 50 cm at 500 lux
- Colour rendering
- Ra ≥ 95, Rf ≥ 96 (front light)
Size & weight
- Net weight
- 0.8 kg
Power
- Power
- 5 V / max. 3 A USB-C, max. 15 W
- USB cable length
- 150 cm
Source: RightDeals research · verified 2026-10-10
Our score is on its way
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What buyers say
We only show star ratings we are licensed to display. Read verified buyer reviews and photos directly on Amazon.
Questions people ask
Will it fit my curved monitor?
Yes, if the curve is between 1000R and 1800R and the top edge is 0.43–6 cm thick. The clamp has rubber pads to protect the screen.
Can I power it from my monitor’s USB port?
Only if that port supplies 5 V at up to 3 A over USB-C; the light draws up to 15 W. Otherwise, use a USB-C wall adapter that can.
Will it block my webcam?
Its front edge is designed not to cover built-in monitor cameras, and BenQ sells an optional mount that holds a webcam on top of the light bar.
Sources & method
Researched from the maker’s specifications, the store listing and published information — not lab-tested. We never accept payment for a recommendation.
