please visit that link and vote for what you would rather have, a flashlight, lantern or Nothing at all.
nothing at all...
heres how it would work in the next patch anyway
Lantern: an Area of light that you can see all around you, lasts for 2 minutes before having to buy or find more oil.
Flashlight: A Small beam of light lights up an area, making a more dark atmosphere but limited sight. lasts for 2 minutes before battery runs out and you must buy more or find more.
Nothing. Screw the above, and you have absolutely no light through the entire game.