Craig said he was never adding any type of carry around light source like lamps, torches, etc.. a long time ago as it would defeat the purpose of making more than one torch in the game. A player would just make the one light and not have to really dig for resources and make torches.. There is however a lighting necklace or something you can get in the game. Wear it.. and your path is lit. It's a rare.. so it's not going to be easy to get.