Does this kit come with a timer or a photosensor?

It comes with a photo sensor that can be set to stay on all night or a set amount of hours. I bought a separate timer, put a piece of tape over the photo eye and set the control to stay on all night. This way the timer turns it on and off as many times as I want, plus the control unit is in the garage.

The one we purchased was a timer. I believe you have a choice if you buy the do it yourself kits at the store. From the box, probably a timer. You'd have to look at the box.