How to control the lighting of your Logitech peripherals - The Verge
Logitech G G413 Mechanical Backlit Gaming Keyboard
Amazon.com: Logitech K845 Mechanical Illuminated Keyboard, Strong Adjustable Tilt Legs, Full Size, Aluminum Top Case, 104 Keys, USB Corded, Windows (TTC Brown Switches) : Electronics
Logitech K845 Mechanical Illuminated Keyboard, Strong Adjustable Tilt Legs, Full Size, Aluminum Top Case, 104 Keys, USB Corded, Windows (TTC Brown Switches) : Electronics - Amazon.com
Logitech K845ch Mechanical Illuminated Keyboard, Cherry MX Switches, Strong Adjustable Tilt Legs, Compact Size, Aluminum Top Case, 104 Keys, USB Corded, Windows (Cherry Red Switches) : Electronics - Amazon.com
Long term review of Logitech G513 after 4 years of use : r/MechanicalKeyboards