LED Control is one of the three basic features of Lenovo Nerve Center, which gives you full control over the LED lights on your gaming system.
The Front Panel Light 1 controls the Y Symbol on the front of your gaming system. You can leave it turned on or off, but only while turned on you can control the brightness that the LED emits. There are three stages of the LED light intensity, so choose the one that suits your needs best.
The Front Panel Light 2 controls the two bottom lights, which illuminate the desk / table the system is placed on. As seen on the screenshot, the controls for the two LED-Sets are separated and allow for individual setup.