Does anyone know if Phillips Hue lights (via the controller) support SNMP so that Cacti could read them ? Or the motion sensor which I've also found as a temperature sensor in it too.

And does anyone have a template for it ?

I don't know about the lights themselves but I'll see if I can find out, and which controller are you using? There are many out there.

From what I can see, the Philips API is JSON/Controller based. So, you would likely need to use a script server script to retrieve the information.