Characters need a way to see in the dark. See Table: Light Sources for the radius that a light source illuminates and how long it lasts.
Characters with low-light vision can see objects twice as far away as the given radius.
| Table: Light Sources |
| Object | Light | Duration |
| Candle | 5 ft. | 1 hr. |
| Lamp, common | 15 ft. | 6 hr. per pint |
| Lamp, bullseye | 60 ft. cone* | 6 hr. per pint |
| Lamp, hooded | 30 ft. | 6 hr. per pint |
| Sunrod | 30 ft. | 6 hr. |
| Torch | 20 ft. | 1 hr. |
| * A cone 60 feet long and 20 feet wide at the far end. |