You can enable and disable the illumination on your G402 gaming mouse. Here's how:
Open the Logitech Gaming Software:
Start > All Programs >Logitech >Logitech Gaming Software 8.55
Click the Lighting Settings light-bulb icon.
In the Lighting Settings window, you can:
- Turn the "G" logo and DPI lighting on and off.
- Select the Lighting Sleep Timer box and specify the number of minutes of inactivity after which your mouse's lighting will automatically turn off.