Buying an electric collar for my 1 year old lab today?

I had a Dogtra when I had my lab, not sure what model. Pretty good collar imo.

Tri tronics

I have a Tritronics. It works just fine. But as others have said, be sure you know how and when to use it. I had my dog trained. I spent two afternoons with the trainer and my dog before I took her home, so the trainer could teach me proper use of the collar. Those were important lessons. I learned to lay off, when I might have been tempted to use the collar. And I know of a couple of guys, who screwed up what should have been good dogs, because they ddn't know how or when to use the collar.