Ive read about this at stratics but need a simple explanation couse I dont really get it.
pls explain "lower requirements" and "damage modifier"

Damage modifier same as Di?

lower requirements something bout dont use stats but I just cant get a hang of what that means ? (Is it good or bad)?

Lower Requirements is a good thing, as some item require your character to have a minimum of certain stats. i.e. a plate mail armor needs you to have 90 strength to equip it. With lower requirements 50% you only need 45 strenght. Damage Modifier probably equals Damage Increase, but it also could mean that the type of damage (physical, fire, cold, etc.) is changed. Depends on the context here....