Can the lights be turned off?

Yes, the product has a touch light switch design, you can turn off the light at any time.

Why does the phone stop charging after charging to 80%?

Please check if it is version 17.1.1. If so, please do not worry as it is caused by temperature issues. After the surrounding temperature decreases, the phone will be recharged.

Can AirPods2 use this?

For AirPods 2/3/Pro/Pro 2 (Note: for Airpods 2/3, needs work with a wireless charging case )

Does this wireless charger need to be plugged into a socket to use?

Yes,It's not a power pack.The package includes 1x in 1 wireless Charger, 1x Type C Cable, 1x 18W Adapter, 1xStorage Box, 1x User Manual.

Does my phone have a case that can be charged wirelessly?

It is recommended to use a magnetic phone case or other phone cases ≤4MM. Please do not use too thick mobile phone case, to avoid affecting the charging.