Lukyamzn Monitor Light

Home Depot

Black color matches, Rectangular light bar design matches, RGB LED capability means it can emit red light, matching the frame, Designed as a monitor light, consistent with likely placement in frame, Form factor and dimensions are appropriate for a desktop peripheral

LED Light Bar Computer Desktop Background RGB Magic Light Music Smart Light | Black | Rectangle | Genuine OEM

eBay

Black color, Rectangular light bar, RGB LED capability (can emit red light), Designed for desktop/computer background

Zhiyun Cinepeer C100 LED Bar

Zhiyun Store

Black rectangular light bar form factor, Capable of emitting red light (RGB), Appears to provide diffused, continuous light consistent with the source frame, Designed for creative/ambient lighting