How do you tell if an outlet is 15 or 20 amps?
The amp rating of an outlet is often printed on, or near, the wall plug.
If there’s no place to tell the amp rating of the outlet from a distance, then you’ll have to use a voltage tester.
You can find a voltage tester at any hardware or home improvement store.
So this is how you can tell if an outlet is 15 or 20 amps.