enbeffect.fx > float Brightness = 1;
oder
enbseries.ini > in der [ENVIRONMENT] section
DirectLightingIntensity=0.72 // was 0.75, Higher = stronger sunlight & more whitening of textures, lower = weaker sunlight.
NightLightingIntensity=0.6 // was 0.7, Darkness at night
DirectLightingCurve=0.55...