What is the limitation regarding passenger cabin lighting during landing?

During landing, the limitation regarding passenger cabin lighting is that it must be dimmed below 10,000 feet. This procedure is rooted in safety protocols established to enhance visibility inside the cabin while also allowing passengers' eyes to adjust to the outside environment for a potential evacuation. Dimming the lights reduces glare and helps passengers and crew maintain situational awareness when approaching landing, making it easier for everyone to see outside and assess the situation during critical moments.

The intent behind this guideline is to ensure that in the event of an emergency, passengers can quickly adapt to outside light conditions, and it also aids crew members in managing the cabin effectively. Since this is a standard procedure across many airlines, it underscores the importance of situational readiness during landing.