Software

The Light² S comes with its own software. All options are accessible through four different tabs. The first page allows for button remapping to mouse, keyboard, media, and macro functions. Furthermore, the usual Windows pointer settings and polling rate adjustment options (125/250/500/1000 Hz) are provided. The second page houses CPI adjustment settings for up to five levels and a range of 200 to 6200 CPI in increments of 100. The third page concerns illumination and is detailed below. Lastly, a macro editor and profile management are included as well. When applied, all settings are saved to the on-board memory, so the software does not need to be running (or be installed) all the time. On my system, the software had a RAM footprint of 6 MB on average when running in the foreground, which doesn't change when minimized to the task bar, but goes down to 3 MB upon closing the application (minimized to the system tray). Upon exiting the application, all processes are terminated, as they should be.

Lighting

Lighting zones for the Light² S include the logo at the back and an LED strip looping around almost the entire mouse. A total of four pre-defined lighting effects are available in the software. These are Spectrum, Pulsating, Spectrum Pulsating, and Permanent. For most effects, it is possible to set custom colors and adjust brightness as well as transition speed. Of course, the lighting can also be disabled altogether.

Color accuracy and vibrancy are excellent throughout. Here's a short demonstration video in which I go through the Spectrum, Pulsating, and Spectrum Pulsating lighting effects. Please note that the flickering lighting in the video is a recording artifact: