It appears you have a 2500 Watt or 20 amp available @ 120 volt.
or 10 amp at 240volt.
Use it and enjoy it.
If you plug something into it using an extension cord, remember to size the cord properly so as not have a voltage/amperage loss.
A good extension cord would be one that is at least 12 gauge wire, and remember the longer the cord is, the more voltage/amp loss.
A 100' cord is not good if you only need 20 feet of it, the loss it still there.
You plug your pancake air compressor into it and it runs it, but i'm betting if you use a 100' extension cord it will struggle.
----But you prolly already know this.
