Photoefficient

Some au-strain are particularly efficient and proficient in converting sunlight into both food and vitality. Asotau-strain, nymofau-strain, and laminau-strain are the superfamilies most likely to have members with this feat, but any au-strain may have it. 

• When you roll to regain hit points from your Photosynthetic Recovery ability, add your Constitution modifier to the roll.
• You may use Photosynthetic Recovery a number of times equal to your Constitution modifier. All uses are regained at the end of a long rest.
• 1 hour of sunlight is equivalent to 6 days worth of food.