I looked at the Xiaomi one for $60 and saw this for less and they look like they pretty much do the same thing, but the Xiaomi looks more fancy. I have nfi how wide each one is. They are both 45cm
Specifications
Material: Aluminum alloy+PC+ABS
Adjustable color: white light, warm white light, mixed light
Color temperature: 2800K-4000K-5500K
Accessories: USB power cable x1 manual x1
Features: No glare I Three-level color temperature I Stepless dimming I Occupying little space I USB power supply I Light memory function
Simple Installation. The coil spring structure can be easily be fixed on the edge of computer screen. The gravity base guarantees stability when rotated to adjust the illumination angle. (Suitable for screens of 8mm-20mm thickness)
The Xiaomi one also comes with a Wireless Dial Controller, which allows you to turn it on/off, adjust the brightness and colour temperature of the light.
The Xiaomi One is 45cm long.