Light source items, are special items that provide a light source for a building or area. You may find yourself adventuring in a dark set of caves, and you will become so deep – that a light source is needed to continue.
There are many types of light sources in the game, such as candles, torches and lanterns to name a few.
Each light source item has a number of uses, so when you are going thru areas, each area you enter will use up one use of the light source. Battling monsters does not affect light source uses.
There is rumor of Ishnar’s Guiding Light – a powerful light spell that has many more uses than a conventional torch or candle.