Solar Powered

Solar Powered is a Fallout 3 Perk.

You gain an additional 2 points to Strength when in direct sunlight, and slowly regenerate lost Health. Unlike Night Person, which operates both indoors and out, this perk only operates outdoors. It is in effect between 6 AM and 6 PM.

Note that this perk does not take effect inside buildings, tunnels, or at night. Its usefulness is questionable as it is not too difficult to have items on hand that restore HP, and during combat, the health regeneration does not make much of a difference. If you ask me, this perk does not even compare to the perk Grim Reaper's Sprint, which fully restores AP if an enemy is killed in VATS.