Light sources

In Runescape there are many types of Lanterns Ranging from a simple Candle Lantern to a Bullseye Lantern

A Bullseye Lantern Can be made by Smithing a Bullseye Lantern (frame) by consuming 1 steel bar on any anvil. Blowing glass and making a Lantern Lens. Then Use the Lens with the Lantern. You'll need to take it to the Chemist in Rimmington along with Swamp Tar to make oil for it, then you can light it.(49 firemaking required).

A lantern can be useful in dark caves where no light is present. A simple candle can be used but it can be blown out leaving you in the dark and causing damage.

A Bullseye Lantern CANNOT be blown out in a dark area by winds or anything, there is also no need to refill it with oil, because once you have done it once it is good forever.