feats for good and evil

[las]

Strength of Day [General]
The good in you gives you strength.
Prerequisite: Any good alignment
Benefit: You gain a +2 Sacred bonus to Strength.

Strength of Night [General]
The evil in you gives you strength.
Prerequisite: Any evil alignment
Benefit: You gaina +2 Profane bonus to Strength

Im thinking of making them holy and unholy bonuses. So what do you think.

 

[Saepiroth]

maybe they should only work during their respective times of day?

and since +2 strength is such a powerful bonus for just a feat, maybe they should be countered by a -2 effect at the opposite time of the day.