A Light Bulb is a Food item obtained by harvesting a Light Flower or as a drop from a Slurper, Big Tentacle or Skittersquid. In Hamlet, they are also a drop from the Glowfly and Rabid Beetle. In DST, light bulbs can be dropped from a Skittersquid with a 33% chance.
While technically a Food item (restoring 1 Health each), Light Bulbs are mainly used for other purposes. They can be used to craft the Lantern or as fuel for Miner Hats and Lanterns (extending durability by ~19.2% or 1.5 minutes per Light Bulb).
Since Light Flowers regrow every 3 days, Light Bulbs are fully renewable, meaning an unlimited supply of fuel for Lanterns and Miner Hats.
Don't Starve Together Edit
In Don't Starve Together, Light Bulbs can be dropped from Skittersquids which are on the surface. After this addition it is possible to craft Lanterns on Cave-less worlds.
- The name Light Bulb is a play on words, in regards to a "light bulb" being the well-known invention popularized by Thomas Edison and "bulb" being the part of a plant where food is stored.