This page is about the Fixture from Project Red. For other uses, see Fixture.
The Fixtures are light sources added by Project Red. They need a redstone signal from red alloy cables, redstone, an adjacent circuit or other blocks/machines, which emits a redstone signal, to illuminate. The inverted version is the Inverted Fixture.
There are 16 colors for the Fixtures (see below).
The Fixtures form a quadratic cone of light and the luminosity amounts to 14 spaces straight in all 4 directions from the block. However, the light is so strong that no mobs spawn only up to a distance of 7 blocks.