Welcome to KeyLed website.

KeyLed application is simple but powerful tool for logitech keyboards that supports led lighting.
You can set time of the day to turn on the lighting aswell as turn off.
You can also set color of the lights, and enable \ disable that automatic led handling as needed.
It is open-source so you can use it freely, modify and provide feedback if you like it ;)
Once you try it, you won't go back. More features will be added as time goes on.