Conceptual editorial illustration, not photographs of the products discussed or a verified mounting arrangement.
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Research checked October 16, 2026. This is a documentation-based buying guide. We have not mounted these lights on your monitor, measured their illumination, or tested a light-and-camera combination. The recommendations are conditional on the measurements and checks below.
The short answer: reserve the camera’s place before buying the light
A monitor light bar and webcam can share one curved monitor when the light’s mount fits the actual top-center housing and the camera has a supported, unobstructed mounting position. A curvature label by itself cannot settle either question.
For a new purchase, the BenQ ScreenBar Pro and ScreenBar Halo 2 are useful candidates because their current documentation gives specific thickness and curvature ranges, and their US packages list a webcam accessory. Start with the Pro if the job is lighting your keyboard and paperwork. Consider Halo 2 if you also want its rear light and separate wireless controller. Both still need a fit check.
If your existing webcam already works well, moving it to a suitable stand may be the simpler solution. If your existing desk lamp lights the work area adequately, buying nothing is a perfectly respectable result. The top of a monitor is a small piece of real estate, and it has somehow acquired the ambitions of a downtown apartment building.
- Compatible top-center housing and a supported camera platform: investigate a light bar with its intended webcam accessory.
- Unusual rear bulge, thin unsupported panel edge, or obstructed vents: keep the camera and light on independent supports.
- Very tight wall or shelf clearance: measure the complete assembly in its working position before ordering.
- The real problem is your face looking dark on calls: assess face lighting separately. This guide is about desk-task lighting and physical coexistence.
Start with the job you want the light to do
A monitor light bar aims its useful light toward the desk. Think handwritten notes, a keyboard, a calculator, or the invoice you are trying to read without moving it under the ceiling fixture. A lamp intended to illuminate your face has a different placement problem.
That distinction matters when shopping. A bar that fits beautifully above a curved display can still leave a webcam image looking much as it did before. Pointing the bar upward to rescue that image may put the light in an unsuitable position for desk work. Decide which problem you are solving before asking one accessory to do two jobs.
Try the room as it is first. Move your existing desk lamp so its light reaches the work surface without appearing as a bright reflection in the display. Turn on a room light. Move a notebook out of the monitor’s shadow. Test at the time of day you normally work, because an arrangement that seems fine at noon may be unhelpful after sunset.
If those changes solve the problem and the lamp base is not in your way, there is no pressing reason to replace it. A light bar earns its place when its mounting arrangement and desk coverage suit a real need, not because a photograph of someone else’s desk looks pleasantly futuristic.
Your monitor’s model number matters more than its diagonal
Write down the full monitor model, including any meaningful suffix. Then find its manual or manufacturer specifications. A 34-inch ultrawide label says little about the shape where a clamp must sit. Two displays with the same screen size and curve can have very different backs.
Record the published curvature rather than estimating it by eye. A smaller R number describes a tighter curve. Use that number to compare with a light manufacturer’s stated support, but do not treat it as an all-purpose compatibility certificate.
BenQ’s current selection guide specifically tells buyers to measure at the top center and include curved or protruding rear sections. It also warns that recessed or bulging housings can affect how securely a clip sits. That is the useful part of the shopping advice: measure the mounting location, not the thinnest attractive edge in the product photograph.
Check the monitor manual for restrictions on attachments, handling, ventilation, and loading. A light manufacturer’s clamp range does not override the display manufacturer’s instructions. If the intended contact area is a very thin panel, a moving camera assembly, or a surface the monitor maker says not to load, ask for model-specific approval before mounting anything there.
The measuring checklist that prevents most bad guesses
You need a ruler, a side view of the monitor, and a little patience. A helper or a photograph can make the awkward rear measurements easier. Avoid pressing measuring tools against the display surface, and do not squeeze a thin panel with calipers.
- Top-center front-to-back thickness. Measure the housing where the light’s front support and rear contact would actually meet it. Include the relevant bulge. Do not use the overall depth of the monitor plus its stand.
- Front bezel height. Measure the physical frame from the top edge down to the image area. This is a different dimension from front-to-back thickness. A black border visible inside the panel is not automatically a load-bearing frame.
- Top-edge shape. Note whether it is flat, rounded, sloped, stepped, or recessed. Photograph it from the side. A clip that opens far enough can still have nowhere stable to rest.
- Rear contact area. Find the solid surface the counterweight or rear pad would use. Identify changes in slope, raised logos, decorative ridges, cable covers, and vent openings.
- Curvature and bar-end clearance. Record the manufacturer’s R rating. Check whether the straight light’s ends and lamp body could contact the curved panel when positioned as instructed.
- Space behind and above. Measure to the wall, shelf, cabinet, or another object. Include the camera, its tilt range, its open privacy shutter, and the cable connector sticking out behind it.
- Camera base and lens position. Measure the footprint of the camera’s support, how far its lens sits above that support, and the room it needs to tilt. Do not measure only the camera’s front face.
- Movement and cable slack. Repeat the clearance check at the monitor heights and tilts you actually use. Include seated and standing positions if the desk moves.
Write the measurements beside a simple side-view sketch. Mark the image area, bezel, vent, rear bulge, lamp support, camera, and wall. It does not need to resemble an engineering drawing. If the camera is represented by a potato with a circle on it, the dimensions still count.
When a measurement is right at a published limit, do not round it toward a purchase. Ask the manufacturer to confirm the exact monitor and camera combination. Include your model number, measurements, and photographs. A useful answer names the contact points and accessory, rather than simply repeating that the light supports curved monitors.
What the two shortlisted light bars actually specify
BenQ ScreenBar Pro: the desk-light-first option
The current US ScreenBar Pro page lists a monitor-thickness range of 0.43 to 6.5 cm, approximately 0.17 to 2.56 inches, and a curved-monitor range of 1000R to 1800R. Its clamp is designed to accommodate several housing shapes, but that does not certify every monitor within those numbers.
The Pro specification page gives overall dimensions of 50 × 13.5 × 9.2 cm. The 13.5 cm figure is the product’s overall depth, not a declaration that it projects exactly 13.5 cm behind your monitor. Use the mounting diagram and your actual contact position to work out the rear clearance.
This is the more straightforward shortlist choice if you want task light above a single monitor and do not need a rear-facing light or a separate control puck. Controls are on the bar, so check that your camera position leaves them accessible.
Exact linked variant: BenQ ScreenBar Pro, black, Amazon US ASIN B0CZ9P1QW9. Check the black ScreenBar Pro on Amazon US.
BenQ ScreenBar Halo 2: when you also want rear lighting
The current US Halo 2 overview lists 0.43 to 6 cm, approximately 0.17 to 2.36 inches, with 1000R to 1800R curved-monitor compatibility. Notice the 6 cm maximum. It is not the Pro’s 6.5 cm limit.
Halo 2 adds rear illumination and a wireless controller. Its published lamp dimensions are 50 × 14.3 × 10.9 cm; the controller is 7.4 × 7.4 × 3.95 cm. Again, overall depth is not the same measurement as wall clearance behind the installed screen.
Choose this feature set because you want it. A rear lamp tucked into an unsuitable gap does not become useful merely because it is included. Think about what is behind the monitor, where the light would fall, and whether the controller has a convenient home.
Exact linked variant: BenQ ScreenBar Halo 2, Amazon US ASIN B0DK59YKRS. Check ScreenBar Halo 2 on Amazon US.
These are conditional candidates, not tested winners. Before paying, confirm the exact model, color where relevant, US power adapter, box contents, seller, condition, warranty, and return terms. We have not included a price or a promise about stock.
Check the webcam accessory before buying another accessory
The current US Pro box-content listing and Halo 2 box-content listing both include a webcam accessory. Older packages, used units, and older advice may differ. Check the exact listing and the contents of your own box before adding a separate mount to the cart. The specification pages still place it under an optional-accessory heading, while the current US buying pages list it in the box, so confirm the bundle being sold.
There is also a separately listed BenQ Webcam Accessory described as a magnetic adaptor with a metallic sticker. Do not assume every accessory carrying that name uses the same attachment method or fits every ScreenBar generation. Match the accessory to the lamp and follow the instructions supplied for that version.
The intended camera platform creates a place to evaluate the webcam; it does not erase the camera’s shape, weight, balance, or cable pull. We did not find a general camera payload rating in the manufacturer pages reviewed for these two packages. Do not turn that missing number into permission to load the platform with any camera that happens to fit on top.
If your camera is unusually heavy, motorized, deep, or fitted with another accessory, ask BenQ about that exact combination. A mirrorless camera, phone clamp, or small microphone should not be treated as an interchangeable webcam. A shelf-shaped object is not automatically a shelf for everything.
Four workable camera positions, with different compromises
1. Above the light on its intended webcam platform
This is the obvious arrangement to investigate when you want the lens centered over the display. Before installing adhesive or committing to the setup, check the camera base against the platform and review the mounting instructions. Keep any protective liners in place until you are ready to follow the approved installation.
Look through the camera preview after mounting. The lamp body must not intrude into the bottom of the frame when the camera tilts down toward you. Open and close the privacy shutter. Check whether the cable pushes the camera forward or prevents its intended tilt. If the camera needs an exaggerated downward angle because the display is high, a separate support may give you a better position.
2. On a separate desktop stand or tripod
This removes the competition for the monitor’s top edge. It can also let you adjust the camera without moving the lamp. Start by checking the camera’s own mounting provision. For example, Logitech’s C920s setup guide identifies a quarter-inch tripod thread in the bottom of its mounting clip and says the tripod is not included.
That example is not a promise about another Logitech model or any other camera. Check your exact manual, thread, support rating, and attachment depth. Use a stable stand that suits the camera. A camera balanced on a wobbly pile of books may technically be elevated, but it is also accepting applications for gravity’s next demonstration.
Place the stand where the lens is clear and the base does not interfere with typing or get knocked by your mouse hand. Check the USB cable reaches without tension. A small existing tripod may solve the problem without replacing either the light or camera.
3. Beside the light on an independently supported top-edge position
An offset webcam can work if its own clip has a suitable place to sit and the lamp remains in an approved position. Do not stack the two clips, wedge one beneath the other, or shift the light off-center unless its instructions allow that arrangement.
Preview the result while looking at the part of the screen you use during calls. A modest offset may be acceptable to you; a camera far out on a wide display can produce a distracting sideways view. This is a framing decision as well as a mechanical one.
4. Keep the built-in camera clear
If your monitor has an integrated webcam, locate the complete camera assembly. Include any privacy slider, pop-up mechanism, sensor windows, and other openings shown in its manual. A small notch in a light’s front support does not establish compatibility with all of those features.
Check normal operation without forcing anything. If the light obstructs the mechanism or an essential opening, choose another lighting position. An existing laptop camera can also be a no-buy fallback when its placement and image meet your needs.
Rear bulges, vents, walls, and monitor arms: the hidden fit checks
A rear bulge is not automatically a rejection. Its position and shape determine whether the intended support can make stable contact. Compare the installation drawing with a side photograph of your monitor. If the rear pad lands on a ridge, slopes off the housing, or needs an improvised spacer to reach, stop and ask for model-specific guidance.
Keep ventilation openings clear. Dell’s product-use guidance, for example, says not to block vents or air intakes and to preserve airflow clearance. Follow the requirements for your exact monitor rather than borrowing a gap measurement from an unrelated display.
Wall clearance has at least three parts: room for the physical mount, room for cables to bend without being pinched, and the monitor’s required ventilation space. If there is rear lighting, also consider its intended light path. The fact that a bar can be wedged between the screen and wall answers none of the other questions.
A monitor arm adds movement and loading considerations. Check the arm’s rated load and the monitor manufacturer’s mounting guidance, including the additional accessories. Do not assume an arm already near its limit has spare capacity. After a permitted installation, follow the arm maker’s adjustment instructions if the screen no longer holds position.
Before raising a sit-stand desk or moving the monitor, check the cable route and nearby shelf. If the lamp’s instructions do not cover moving it while mounted, remove it first. An accessory should not become the handle you use to reposition the display.
Power and sensor clearance count as fit, too
The camera needs its data connection, and the lamp needs a suitable power source. A convenient socket is not proof that it supplies the power the light requires. Do not assume one spare USB port or an unpowered hub can serve the whole arrangement.
Use the supplied adapter as the straightforward starting point. BenQ’s manufacturer-authored Pro guide hosted by Amazon specifies 5V DC, 2A when using an alternative USB-C port for optimized operation. That older guide is useful for power and handling guidance, but its box-content list predates the webcam accessory now listed on the current US page.
The Halo 2 specification is 5V, maximum 3A over USB-C. Verify an alternative supply against the manual for your exact unit. Do not presume a USB-A adapter is an approved substitute. Route both cables so that moving the camera, monitor, or desk does not pull on the light’s mount.
Keep the light’s ambient-light and presence-sensor openings unobstructed. A camera foot or cable loop across a sensor can interfere with its intended operation. Do not cover sensors with tape as a mounting workaround. If automatic behavior is inconvenient, use the manufacturer’s controls and instructions.
Try the complete setup while you can still return it
Read the seller’s actual return terms before ordering, including how installation or used adhesive affects eligibility. Keep the packaging and all supplied parts. A meaningful fit check is more useful than a quick unboxing photograph.
- Inspect the contact points. With the equipment supported and installed as instructed, confirm the mount sits correctly without loading the active display area or obstructing openings.
- Check stability without a stress test. Look for slipping, rocking, or a visible gap where the instructions require close contact. Do not yank, shake, or deliberately overload the assembly to prove a point.
- Add the camera by its approved method. Recheck the mount after adding it. If the light shifts or the camera will not stay put, remove the camera and resolve the fit problem.
- Inspect the screen from your working seat. Use a dark application window as well as your normal content. Adjust the lamp only within its permitted range. If a persistent reflection bothers you, the setup may be unsuitable despite fitting mechanically.
- Read and write where you actually work. Check the notebook, keyboard, and documents you use. Moving your whole working area to chase the light is a sign to reconsider the purchase.
- Preview a normal call. Check framing, shutter access, and whether the bar appears in view. This verifies camera coexistence; it does not establish that the lamp is effective face lighting.
Remove the accessories and seek support if the mount slips, the housing flexes, cables are damaged, or the arrangement requires pressure on the panel. Do not compensate with coins, folded paper, stronger glue, extra clamp force, or modifications to the light’s hinge. Use only manufacturer-approved pads or mounting parts for that exact situation.
The buying decision
Buy a monitor-mounted bar only after you can explain where every support will sit, where the camera will go, and what remains clear. For a monitor inside its documented limits, ScreenBar Pro is a sensible candidate for desk-task lighting. Halo 2 is worth investigating when you also want its rear illumination and separate controller.
For a housing or curve outside the stated range, an obstructed vent, a camera with uncertain support, or a monitor whose instructions rule out the arrangement, choose independent supports. That could mean keeping your desk lamp, using a tripod you already own, or moving the camera rather than replacing everything.
The successful setup is the one that lights your work, holds the camera correctly, and leaves the monitor operating as intended. It does not need to win a beauty contest. It does need to remain a desk, rather than an ongoing negotiation with a clamp.