Help · Updated October 2026
LumenBar FAQ
Short answers on choosing, setting up, and caring for your desk light.
Monitor light basics
What does an asymmetric light path do?
It directs light toward the desk in front of the monitor, with the aim of reducing light falling on the screen. Position, monitor finish, and room lighting affect reflections; it does not guarantee a glare-free screen.
Does it replace the lighting in my room?
A monitor light adds task lighting for your keyboard, notes, or desk. Keep comfortable background lighting too, and adjust the screen and lamp together to avoid strong brightness differences.
Is this an eye-care monitor lamp?
LumenBar is a task light for your desk. For a comfortable setup, balance the room and screen lighting, limit reflections, and take regular breaks. It is not a medical device or treatment for eye strain.
Can I dim it or change the light color?
The light has touch controls for brightness and light tone. Start with a low setting and adjust to suit your desk and room. A numerical color-temperature range and setting-memory behavior are not specified.
Size and monitor fit
Should I choose 42cm or 50cm?
The 42cm light is $59; the 50cm light is $64. Start with the usable width across the top of your monitor. Choose a length that leaves clearance for your setup. A longer body does not establish higher brightness or a wider measured light footprint.
Will it fit every monitor?
Fit depends on the bezel, display thickness, and rear shape. Check that the mount can sit securely without touching the active screen or covering vents. A supported thickness range is not specified; screen diagonal alone does not confirm fit.
Can I use a webcam or a laptop?
Leave space for a webcam and its cable at the top of your monitor. Do not stack it on the light unless both mounting instructions allow it. Laptop compatibility is not specified, so do not assume the mount can support a thin laptop screen.
USB power and care
How is it powered?
By USB, at approximately 5W. Match your power source and cable to the light’s input label. Check the power budget of a shared USB hub, and leave enough cable slack to adjust your screen.
Are a cable, adapter, or remote included?
One light is listed in the box. Plan for a compatible USB cable and power source; a cable, wall adapter, and remote are not listed as included.
How do I clean it?
Disconnect USB power, then gently wipe the body and light window with a soft, dry cloth. Keep liquid away from the light and connector. Do not spray, rinse, immerse, or use abrasive cleaners.
Ordering and shipping
How do I choose and order a light?
Choose a light, select the length, and add it to your cart. You can review shipping estimates and checkout status there before continuing. Full ordering terms are on the Terms of service page.
Where do the shipping estimates apply?
To the US, in USD. Shipping is free at a $59 merchandise subtotal. Below that, accessory-only carts are $4.99; other carts are $7.99. See the shipping policy for delivery availability.
Are tax, VAT, and duties included?
Tax, VAT, and import duties are not calculated or included in the displayed estimates. See the shipping policy for details; these totals are not a final landed price.
What is the returns policy?
The planned policy allows 30 days from delivery to request a return of an unused item. Statutory consumer rights, including applicable EU withdrawal and faulty-goods rights, are unaffected. Read the returns policy for full conditions and availability.
Topic pages
Putting your setup together?
Start with a tape measure and our practical desk guides.