Dominate the Building Tech & Utilities Test 2026 – Power Up Your Skills!

The pattern you’re looking for comes from combining diffuse light with indirect light so that a portion goes upward toward the ceiling and a portion goes downward into the space. General Diffuse / Direct-Indirect Lighting fits this idea because it mixes diffuse illumination with an indirect component, spreading light broadly and reflecting off surfaces. That reflection and diffusion send light both upward and downward, yielding a fairly balanced distribution.

Direct lighting, by contrast, sends most light downward onto tasks. Semi-direct is mainly downward with a smaller upward component. Semi-indirect is mainly upward with less downward contribution. So only the general diffuse / direct-indirect approach achieves that almost-equal upward and downward distribution.