Illumination

Darkness conceals details and makes it more difficult to detect objects and targets. Subtract the following penalties from rolls affected by Illumination, such as attacks, Notice rolls, the use of powers, etc.
Illumination Penalties

Penalty	Lighting
-2	Dim: Twilight, light fog, night with a full moon.
-4	Dark: Typical night conditions with some ambient light from stars, a clouded or partial moon, emergency lights in an office building, a few flickering torches in a large space, etc. Targets aren't visible outside of 10".
-6	Pitch Darkness: Complete and total darkness (or the target is hidden or invisible). Powers that require sight may not be possible.