connection by led on ipad

hello I’m about to buy the photon 2 app I don’t know anything about light I’m a beginner.
how do i connect the by led to my ipad to be able to order them thank you for your answer

Hello and welcome !
Photon is used for DMX compatible device or Philips Hue Led.
You can’t control LED not compatible with theses protocols. What LED do you have ?