Dependency Sunlight [-5] has the following properties (I don't know how to fit them into the template):

• Very common: -5cp base cost,
• to be consumed weekly (x2),
• not deadly: loose FP instead -50%.

In order to get original Earthdawn proportions it has to be used as: After 6 weeks without beeing in the sun for at least 6 hrs continously (double that, if sky is covered in clouds), you loose one FP for each 6 hr interval without getting into sunlight.

Healing those FP only works in the sun.