Via RasPi.tv:

Giving GPIO Zero (Beta version) a test drive might make you feel a little insecure, but I’m aiming to throw some light on the situation. I decided to try out some of the built-in features of GPIO Zero by working up a little hardware project. I looked at the current feature set and decided to try and combine MotionSensor, LED and LightSensor all at once. What sort of project uses that kind of technology? Why a PIR-controlled security light of course – if you swap the LED for a relay and 12V lamp! The video will give you an overview of what’s going on.