Philips lights work fine but I cannot find them in the app

[whatever124]

I have 4 philips lights which I usually control using Alexa and in groups (Kitchen, office). I believe those must be Philips Hue Bluetooth since I never bought a Hue bridge and was able to configure the lights directly in the app.
They work fine but I want to adjust the settings (say the light color) and I can't find them in the app. I see all my other devices but none of the bulbs. WHERE ARE THEY?? it is driving me crazy