Yes
If you are asking can you put a device, controlled by a switch, using a connection with an outlet, the answer is yes. The caveat is that whatever you add must stay within the amperage rating of the controlling fuse or breaker.
Downstream
the boat is going downstream.
No, "downstream" is not a compound word. It is a single word that combines the words "down" and "stream" to refer to the direction in which a river or stream flows.
Living Downstream was created in 2010.
Oscar Downstream was created in 2001.
Oscar Downstream's population is 130.
Oscar Downstream's population is 2,009.
downstream and upstream
You should position your feet facing downstream if you have capsized and are floating on your back in a swift river current.
assembly upstream and downstream in ammetres