Most light bars are built and tested for single screens. Here is what actually happens on a dual-monitor setup, common lighting pitfalls, and how to fix coverage gaps. Affiliate Disclosure: This post contains affiliate links. If you buy through them, we may earn a small commission at no extra cost to you. We only recommend products we've researched and would consider using ourselves. Quick answer: A single light bar is built to cover one monitor's width, usually 24 to 34 inches. Two monitors side by side typically span 50 to 55 inches, so one bar clamped to just one screen leaves the other noticeably dimmer. If you're running two monitors, you generally need either two light bars, one bar specifically rated for wide, multi-screen desks, or a repositioned desk lamp that covers the full span instead. Someone finishes setting up their second monitor, feels genuinely good about the workstation for the first time in months, and then notices something during a late evening se...
