Here's how to add Ikea Trådfri lights to the Philips Hue Bridge hub
Philips Hue Dimmer Switch - Dim up to 10 Hue Bulbs - Easy to attach anywhere - Connect to Hue Bridge - Smart Home - Use as a Remote Control : Amazon.nl: DIY & Tools
How to pair TRÅDFRI On/Off Switch to Philips Hue Bridge - YouTube
Ikea Trådfri smart lighting vs Philips Hue | Stuff