The Lenovo Yoga 7i-14 model number 82BH0006US, weighs 4.95 lbs.

Hold down the Fn key and at the same time, tap the Spacebar, once to turn the backlight on, twice to increase brightness, three times to turn the backlighting off.

That really depends on the requirements and compatibility of the specific games. The Lenovo IdeaPad 1 14 Laptop, model number 81VS009GUS, is an entry-level configuration that ships with Windows 10 S-Mode Operating System. Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost. We recommend you check with the specific game's software publisher's web sites for their compatibility with Windows 10 S-Mode 64-bit operating system and the minimum/recommended hardware requirements (Is a Graphics card required, the processor speed and the minimum required system RAM and the minimum available hard drive space) to run their program, then compare those requirements to this system's configuration.

The Lenovo Chromebook Flex 3 11 model number 82HG0000US, uses a 45W USB-c format push-in AC adapter at the computer side. The AC adapter/charger is included with the Chromebook Flex 3 11.