Hi Folks, I've upgraded my electrical service to a 200 amp circuit
breaker system. I would like to add another circuit for some
additional florescent lights in my basement. I have several open slots
for new breaker's in the panel. My question is can I buy a new circuit
breaker and install into an open slot then run a new line to the
lights ? or do I need a professional to install new circuit's.
Thanks Dick

If you have to ask, then yes you need a professional.