[4] Commercially, "Light Switch" reached number one in Singapore, and charted in the top ten in Malaysia and Vietnam.

It reached the top 40 in Canada, worldwide, Ireland, Lithuania, New Zealand, Sweden, Switzerland, and the United Kingdom, and peaked at number 27 on the Billboard Hot 100.

On January 18, 2022, Puth revealed the release date and cover art for "Light Switch" on his social media accounts.

A Tae Bo instructor (Billy Blanks) he watches crawls out of the TV and encourages him to get back into shape with some workouts and other activities, such as fence painting, cleaning, and buying $100 worth of Bitcoin.

"[8] The music video also includes product placements from Regal Select Exterior Paint by Benjamin Moore and the cryptocurrency company Coinbase.