Which strategy for interior lighting primarily provides overall illumination?

Ambient light is the primary strategy for providing overall illumination in a space. It serves as the foundational layer of lighting that fills an area with a uniform level of brightness, creating a comfortable atmosphere for everyday activities. This type of lighting is essential for visibility and safety, as it ensures that the space is well-lit without creating harsh contrasts or shadows.

In interior design, ambient light can be achieved through various sources, such as ceiling-mounted fixtures, floor lamps, or wall sconces, and it often incorporates natural light from windows to enhance the overall brightness of a room. Ideally, ambient lighting should be adjustable or layered with other types of lighting to create a more dynamic and functional environment.

On the other hand, task lighting is designed to illuminate specific areas for particular activities, such as reading or cooking, while accent lighting is used to highlight features or artworks, creating visual interest in a space. Feature lighting, similar to accent lighting, focuses on particular architectural elements or decorative items. Each of these types enhances the environment in different ways, but they do not primarily provide the overall illumination necessary for general visibility throughout a room as ambient light does.