How do the people of the Tundra get light in winter?

The people living in the Tundra mostly move from place to place throughout the year, following a fairly fixed order of seasonal activities especially the eastern groups. They spend the winter near the coast, hunting for seals and fishing because of the extreme cold weather conditions during the winter when the entire region is dark, deserted and desolate.

Seal-oil lamps are majorly used for providing light and heat.