How to Replace a Light Switch. The swap takes only about 10 or 15 minutes. By Joseph Truini Updated: Jul 04, 2020 1:00 PM EDT. John Kim / EyeEm // Getty Images.

If your desk lamp is taking up too much space, ... Then, with a few bolts, you've got a wall lamp that you can turn on and off with the room's light switch. Hit the link to see more.