Home Assistant Discover Devices

I have setup home assistant on my Mac and I’ve bought this Philips hue lightbulb.

https://www.amazon.co.uk/gp/aw/d/B0152WXDDQ/ref=mp_s_a_1_3?ie=UTF8&qid=1480784238&sr=8-3&pi=SX200_QL40&keywords=philips+hue&dpPl=1&dpID=21cWI%2BeLffL&ref=plSrch

I’ve installed the lightbulb but home assistant hasn’t discovered it. How do I get home assistant to search for new devices or any devices? I’ve only recently installed it and the documentation isn’t very clear.

I found the component for it and edited the configuration.yaml to support it instead of using discovery but that didn’t do anything when using home assistant ui. Please help!

You need the hue hub to controle your light.