D&Dtools1

Benefit

As long as you have a light spell of 2nd level or higher available to cast, you can take a swift action to grant yourself the ability to see normally in any conditions of illumination (shadowy illumination, darkness, and magical shadow or darkness). The range of this vision is 10 feet per level of the highest-level light spell you have available to cast, and the effect lasts for 1 round. As a secondary benefit, you gain a +1 competence bonus to your caster level when casting light spells.