Press "FN" + "INS, HM, PU, DEL, END,SL & PD"- to change 10 different lighting modes. Press "FN" + "Left/Right arrow key" - to move the led light from Left to right or Right to left. Press "FN" + "Up/down arrow key" - to change the LED brightness adjustment Press "FN" + "zero(0)" - Custom 1 Press "FN" + "9" - Custom 2 Press "FN" + "(F1 to F11)" - to use Multimedia Keys. Press "FN" + "Windows keys" - to lock the WINDOWS key function, press again to unlock. Press "FN" + "-" - to Decrease the blinking speed of LED Press "FN" + "+" - to increase the blinking speed of LED