Monitor light bar or desk lamp: what suits your workstation

Task first, then design

The question of monitor light bar or desk lamp cannot be answered across the board, because it depends on three things: what you do at the workstation, how much surface should stay free, and how your monitor is built. Someone who spends eight hours editing spreadsheets and text at the screen has different requirements from someone who sorts invoices, draws sketches or solders components. So before you look at models, it is worth writing down your daily routine.

A monitor light bar, often called a screen bar or light bar, is a slim strip of light that sits on the top edge of the screen. It shines downwards and forwards so that the keyboard and desk surface get light without the display reflecting it back. A desk lamp, by contrast, stands on the desk or is clamped to the desk edge. It usually has a movable arm that you point at the spot where you are reading or writing.

What matters is the distinction between screen light and task light. A bright monitor in a dark room strains the eyes through the strong contrast with the surroundings. Additional light behind or above the monitor softens that contrast. For reading on paper, however, you need light that falls directly on the page and neither dazzles you nor throws your shadow onto the sheet. One lamp can do both jobs, but it does not have to.

What a monitor light bar offers

The biggest advantage of a monitor light bar is space: it takes up no desk surface because it sits on the screen. This is of particular interest for small desks, home office corners and shared workstations. A second point is the optic of the light strip. Manufacturers speak of asymmetric lighting, in which the light is directed at the desk surface and does not hit the screen.

We have no documented hands-on testing for this, and the following details come from manufacturer documents and product listings. For the BenQ ScreenBar Pro, according to the manufacturer, BenQ states more than 1,000 lux in the centre at a height of 50 centimetres and 500 lux over an area of 85 by 50 centimetres. According to the manufacturer, the documented compatibility ranges from 0.43 to 6.5 centimetres of monitor thickness, including curved displays. The BenQ ScreenBar monitor lamp has in its listing 500 lux over 60 by 30 centimetres and a clamp for monitors 1 to 3 centimetres thick. There is no manufacturer document for this model, so the figures are listing claims.

The limits of the design follow from the arrangement. A monitor light bar sits fixed on the screen, so you cannot point it at a sheet at the edge of the desk. The light falls over a wide area in front of the monitor, not in a narrow cone. For fine handwork that is a disadvantage, but for the keyboard and for notes directly in front of the screen it is a fitting solution. The mount must also suit the monitor. With thin frames, strongly curved displays and devices with an attached webcam, check the details on the page before you order.

What a desk lamp offers

A desk lamp is the more flexible design. You can bring it closer to the work surface, turn the light head and adjust the angle so the light comes in from the side. This is especially helpful when writing by hand, because light from the side keeps your shadow off the writing surface. For paperwork, drawing or crafts too, a movable lamp gives more freedom than a fixed strip on the monitor.

The Xiaomi Mi Smart LED Desk Lamp 1S is a classic desk lamp with a base. According to the manufacturer, it delivers 520 lumens, covers 2,600 to 5,000 kelvin, reaches Ra 90 and draws nine watts. It works on 2.4 gigahertz Wi-Fi and, according to the manufacturer, can also be controlled by a rotary knob without voice commands. As a clamp lamp, the EYOCEAN LED architect lamp with adjustable arm shows a different variant. According to the manufacturer, the instruction manual for model CLED-2600C gives 12 watts maximum power, 700 lumens with a five per cent tolerance and 3,000 to 5,500 kelvin. The listing states that the clamp supports desktops up to 5.1 centimetres thick.

The Lepro LED desk lamp, clamp-on is a clamp lamp with a gooseneck. According to the listing, it offers three colour modes, ten brightness levels and a USB connection for power. There is no manufacturer document for it, so we cannot state luminous flux and colour temperature in figures. That is exactly the issue with cheap clamp lamps: the functions are described, but the brightness remains a gap. If you need a specific lumen figure, the guide to lumens for desk lamps offers some guidance on how to assess it.

Checking space, monitor and room

Before you decide on a design, a short stocktake helps. First measure the thickness of the monitor's top frame, because every mount is designed only for a certain range. Check whether a webcam sits at the top, whether the monitor is curved and whether a USB port is within reach. According to the listing, the Quntis computer monitor lamp 41 cm is powered via USB-C at 5 volts and 1 ampere, which suits most monitors and computers with a free port.

Then measure the desk edge and desk thickness if you are considering a clamp lamp. The clamp of a desk lamp must fit the top, and some desktops with an overhang, drawers or shelf units do not allow clamping. A lamp with a base, on the other hand, needs floor space on the desk and a reachable socket or USB port. Also check the cable route so that the cable does not run across the work surface.

Finally, the room counts. In a bright office with a window at the workstation, less additional light is often enough than you expect, whereas in a room without daylight every light source has to do more. The lighting calculator, which brings room and task together, offers guidance for planning. To assess colour temperature, the guide on colour temperature in kelvin helps.

Colour temperature, glare and eye comfort

Besides the design, light quality decides comfort. Warm white light around 2,700 kelvin feels cosier, while neutral to cool white light is generally regarded as more businesslike for concentrated tasks. Adjustable colour temperature helps because you can work differently in the morning than in the evening. The BenQ ScreenBar monitor lamp has 2,700 to 6,500 kelvin in its listing, and the Quntis computer monitor lamp 41 cm has adjustable brightness and colour temperature according to the listing. The BenQ ScreenBar Pro is described in the listing with 16 brightness levels and 8 colour temperatures.

With glare, the angle matters, not only the brightness. A very bright lamp that shines directly into the eye or onto the screen is worse than a weaker one with the right direction. For monitor light bars that argues for the asymmetric optic, and for desk lamps for an arm that can be swung sideways over the work surface. Flicker also plays a part. The Xiaomi Mi Smart LED Desk Lamp 1S is described in the listing as flicker-free, and for other models there is no reliable information.

For complaints such as persistent headaches or burning eyes, no lamp replaces advice from an eye specialist. And good lighting is only one part of ergonomics: monitor distance, breaks and sitting posture belong to it just as much. The guide on working in an eye-friendly way collects advice on the subject.

The models mentioned compared

The following table sets side by side only values that appear on the respective product page. Manufacturer values are marked with according to the manufacturer, and all other figures are listing claims without independent measurement. No ranking follows from this, as the models belong to different designs.

The table shows where the gaps are. For three of the six models there is no manufacturer document with figures, and luminous flux is stated for only two desk lamps. Monitor light bars are also usually specified in lux over a defined area, and desk lamps in lumens. The two units cannot be compared directly, because lux measures the illuminance at a location and lumens the total luminous flux of the source.

Which solution suits whom?

The monitor light bar suits you if you work mainly at the screen, have little space and want light for the keyboard and the desk surface in front of the monitor. It is an alternative to a desk lamp if you only occasionally write on paper. If you own a curved monitor, read the mount details carefully. Here, according to the manufacturer, the BenQ ScreenBar Pro explicitly names a range for flat and curved displays.

The desk lamp suits you if you read a lot, work by hand, draw or tinker with small objects. If you do not want to give up surface space, choose a clamp lamp such as the EYOCEAN LED architect lamp with adjustable arm or the Lepro LED desk lamp, clamp-on, provided the desk edge allows it. If you value an app and voice control, the Xiaomi Mi Smart LED Desk Lamp 1S offers the basis for it, according to the manufacturer.

Combining both designs is also an option: the monitor light bar takes care of the area in front of the screen, the desk lamp of paper and detail work. That costs more and needs two connections, but it solves both tasks separately and can be dimmed independently. An overview of further designs is given on the page about desk lamps. On the question of whether a lamp on the monitor is worthwhile at all, the trade-off in the article Are monitor light bars worth it? helps. On price band: the models range from entry level to upper mid-range, with branded monitor light bars tending to sit in the mid-range.