Press F5, F9, or F11 to turn on or off a backlit keyboard Reviewed by Jerrick Leger Not every HP laptop is the same, but if you want to use the HP keyboard backlight, you have a few options. This ...
Logitech has launched a new keyboard that can only be charged with light, as it doesn't feature any replaceable batteries or USB ports.
The K980 can recharge through sunlight or via artificial light at 200 lux or higher.