Let's say that you may not need a license.
Now, let's simply get some customers to call you or come through your doors.
What do you have to offer them? Do you have experience? Are you qualified? Do you have the education, electrical license, degreed, etc.
In other words what do you have to offer for what you would like to get paid? Why would the customer rely on the accuracy of the information that you are providing them? What liability do you have when you provide the customer with that information if you are not experience or qualified?
Just some thoughts.
Dave T