What's the effect of various conditions of illumination (darkness, starlight/low-light)?

I'm putting these effects in my house rulebook for easy reference.

jh

From the gathering storm...

Pitch blackness imposes 4 misfortune dice.

Faint light source (candle) reduces penalty by 1 dice

Moderate light source (torch or lantern) reduces penalty by 2 dice

Strong light source (several torches, Bright Wizard's flaming staff) reduces penalty by 3 dice

Night vision reduces penalty by 2 dice, also

Thanks. Stuff like this should be kept handy, so I'm putting it in my house rules. Then the GM doesn't need to know 'everything' and I can have the players help out

jh