on Ducky question, this is the reply from our friends in Jokkmokk
hope this answers your question
In late January/early February we have about 3-4 hours daylight. When we dont have daylight it is really dark. Especially if you go outside the city, like in the forest or mountain area.
Of course, the snow makes it a bit lighter.
Though, you should know that the national parks are not easy accessible during winter. You cannot drive with car/bus all the way to the border of the parks. For most of the parks it is at least one day skiing/walking to get even to the border of them.
hope this answers your question