
Common Settings
Drop shadow: enable or disable casting a shadow by this light source.
Use temperature: set warmer or colder light color.
Global illumination source: enables color bleeding from this light source. The light of this light source will be dispersed and reflected in the vicinity.
Use a recessed light source: turn this off to avoid bright hotspots in your scene in Photo Tuning.

IES (Illuminating Engineering Society) profiles help you achieve a realistic light emission pattern, giving your art an extra dose of realism. The profile you choose will be visible both in real time 3D view and in Photo Tuning. IES profile selection is available for inner lights (point lights, spot lights) but not for external lights (portal lights).