Turning On Keyboard Backlight On Your Lenovo PC
https://support.lenovo.com/us/en/products/laptops-and-netbooks/yoga-series/yoga-730-15iwl/videos/nvid500013-turning-on-keyboard-backlight-on-your-lenovo-pc
WEBUse the following steps to toggle the keyboard backlight: Press the function key and spacebar to toggle the brightness of the keyboard backlight. One tap is for low brightness, two is higher, and the third turns the light off. For more information, click: How to turn on/off keyboard backlight.
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