What temperature should I set for my AC to optimize energy savings?

During summer: between 24 - 26℃

Tip: Remember to also turn on the AC’s fan (or a regular fan) to keep the room’s temperature within this ideal range.

During winter (if AC has heating function): between 18 - 20℃ 

Tip: Don’t forget to close the windows and curtains to prevent the loss of warm air.