SUMKUMY Monitor Light Bar Dual Light No Glare, CRI 95, 3 Color Modes, Dimmable Review (2026)

Who benefits from a dual light bar

The SUMKUMY light bar is aimed at people who spend long hours looking at a monitor and want to reduce the harsh contrast between a bright screen and a dark room, a common cause of eye fatigue. Unlike a simple desk lamp, this is a screen mounted bar that lights the desk and keyboard from above the display without shining glare back into the screen, while a second light faces backward to softly illuminate the wall or area behind the monitor. That combination suits designers, writers, students and anyone doing close detail work like drawing or crafts where accurate color rendering matters. Gamers or streamers working in dim rooms at night are another natural fit, since the backlight reduces the stark brightness gap between screen and surroundings that makes eyes tire faster during long sessions.

The specs behind the eye comfort claims

SUMKUMY rates this bar at a CRI of 95 or higher, a measure of how accurately a light source renders true colors compared with natural daylight, which is a meaningfully higher figure than the CRI 80 range common on cheaper lamps. It offers three color temperature settings, spanning a warm tone around 3100K, a neutral tone around 4200K, and a cooler white around 6200K, letting the light match daytime work or evening wind-down. The bar runs on USB power at 5 volts and is rated for a modest 5 watts at maximum output, so it draws little power and can run from a laptop port or USB hub. An asymmetric optical design aims light down at the desk and keyboard rather than straight out, which is the mechanism that keeps glare off the screen itself.

Mounting it and using it day to day

The bar clips onto the top edge of a monitor without a stand taking up desk space, a design shared with most screen light bars in this category. Because it draws power over USB, cable routing usually means running a short lead down to a USB port on the PC, a monitor's built-in hub, or a nearby outlet adapter. Controls are handled through a touch sensor on the bar itself, letting a user cycle color temperature and adjust brightness without hunting for a separate remote or app. Because the rear backlight only illuminates whatever is directly behind the monitor, its benefit depends on desk setup: a monitor pushed against a wall gets a visible ambient glow, while one sitting in open space or facing a window sees little effect from that second light.

How it stacks up against the category leaders

Among monitor light bars, the SUMKUMY sits in the middle of the pack behind category leaders like the BenQ ScreenBar Plus and the Quntis bar, both of which add auto-dimming sensors that read the room and adjust brightness automatically rather than relying only on manual touch controls. Those two also carry stronger brand recognition in the lighting space, which matters for buyers who weigh long-term reliability heavily. What sets the SUMKUMY apart from cheaper light bars further down this guide is the dual light design itself, since most rivals only light the desk and skip the rear backlight feature entirely, making this one of the few in its price range offering both effects together.

Verdict on whether to buy it

Pick the SUMKUMY if eye strain from staring at a bright screen in a dim room is the main problem, and if the extra rear backlight against a wall or shelf sounds genuinely useful rather than a curiosity. The CRI 95 rating and three color temperatures make it a solid choice for color sensitive work like illustration or photo editing on the side. Buyers who want automatic brightness sensing without touching a control should instead consider the BenQ or Quntis bars ranked above it, which handle that adjustment on their own. For a budget conscious upgrade that still delivers accurate, glare-free desk lighting, this bar earns its place in the middle of the category.

Frequently asked questions