Camera is too dark in my app

I’m making an app with unity ARKit but when I play my app in my room at night it just too dark so hard to see anything but if I use native iPhone camera app, looks bright like daytime.
How can I fix this issue??110327-7e860634-8c1d-4001-af9b-dab30304ab97.png

Can be all sort of things, it could be a lighting issue.
Are you displaying the camera stream on a mesh that does not have an “unlit” material?