Can't connect smart light bulb to Wi-Fi with login page (HomeKit)

Hi,

I have a smart light bulb (iLuv Rainbow8, HomeKit compatible) which I would like to connect to an existing Wi-Fi network in order to control it with my iPhone and use all the HomeKit features.

Unfortunately I don't have any control over the network as I live in a student building where every student receives login credentials to use the Wi-Fi. When selecting the Wi-Fi network in the iOS settings, a pop-up requires username and password.

When setting up the smart light bulb, the list with all the available networks does not contain this particular network, I assume because of this special login procedure. I basically have no way to tell the bulb to connect to my Wi-Fi.

Any ideas how to work around this? Thanks.