This article explains how to set up and use the iPhone camera's Night Mode, which devices it works on, and when you can use it.
iPhone 14s/14 Pro Max: How to switch the camera to Night mode and take a photo in the dark
The best thing about Night mode on your iPhone is that you don’t have to turn it on. Night mode on iPhone 11 (and later) works automatically when the camera detects a low-light environment. You don’t have to do anything.
Using Night mode on an iPhone camera is pretty simple, as it’s very similar to taking a regular photo. Here’s a quick guide on how to take photos with Night mode on your iPhone.
Open the Camera app on your iPhone.