Which portable lamp provides the most diffuse distribution of light?

The option that provides the most diffuse distribution of light is a table lamp with a translucent shade. A translucent shade allows light to pass through while softening its intensity, creating an even and filtered glow that spreads widely throughout the room. This characteristic results in a gentle and comfortable illumination that reduces harsh shadows and direct glare.

In contrast, lamps with opaque shades tend to direct light more narrowly and limit the spread of illumination, creating distinct pools of light rather than a diffused effect. Adjustable spotlights, like those found in a tree lamp, focus light in specific directions to highlight areas or objects, rather than distributing light evenly. High-intensity lamps typically produce bright, harsh light that lacks the diffusion necessary for a softer effect. Therefore, the table lamp with a translucent shade is the choice that ensures the broadest and most gentle light distribution.