Considerations such as the light's intended use, the area to be lit, and individual taste should be taken into account when deciding on an adequate wall light's brightness level.
The function of the light must be considered first. A wall light with a lower brightness setting can be more appropriate for use as an accent light in a smaller space, such a corridor or bedroom. Such places would be adequately lit by a wall lamp with 400 to 600 lumens.
A wall lamp with a lower illuminance setting may not be enough for a bigger space like a living room or dining room, therefore it's important to consider the intended use properly. In order to get a more uniform and powerful lighting in these areas, a wall lamp rated between 800 and 1000 lumens would be ideal.
Keep in mind that lumens are only one consideration when shopping for a wall light. A room's ambiance and practicality may be greatly affected by factors such as the color rendering index (CRI) and the light color temperature. Commonly utilized in task-oriented environments like kitchens and bathrooms is cool white light with a CRI of 90 or above, while warmer white light with a CRI of 80 or above is typically reserved for living areas.
At the end of the day, the wall light's intensity should be adjusted according to the room's requirements and the user's personal taste. Make sure the light is bright enough to do its job but also creates a cozy and inviting ambiance; finding that sweet spot between the two is essential.

