Sorry if I'm a bit slow on this. I just have a couple of cheap little blinkies, this is all kind of new to me and I couldn't tell my looking at the web site. Does this come with any kind of battery or does that have to be purchased seperately? Is it the type of battery you would see with your typical front light? Like a battery pack and where do you mount yours. On my cheap blinkies, there's a built in clip that simply snaps over a tag on the seat bag or trunk rack. How did you mount yours?

Again, I apologize for asking you to talk me through this.