UE4 doesn't use Enlighten out of the box. It uses its own system called Lightmass, which generates very nice static lightmaps, but is not that great for dynamic

UE4 doesn't use Enlighten out of the box. It uses its own system called Lightmass, which generates very nice static lightmaps, but is not that great for dynamic GI (it has some basic support through what's called "indirect lighting caches" https://docs.unrealengine.com/latest/INT/Engine/Rendering/LightingAndShadows/IndirectLightingCache/ https://docs.unrealengine.com/latest/INT/Engine/Rendering/Li...). However, you can get Enlighten as a licensed plugin.