This mod adds an enchantment to the game called "Sun Block" that is exclusive to helmets. Upon wearing a helmet with the "Sun Block" enchantment, this mod will have origins:exposed_to_sun return false thus canceling out the sunlight damage you may encounter in most (all?) origins (both the Phantom origin shipped with Origins and the Vampire origin shipped with Origins: Vampire both have the origins:exposed_to_sun condition as one of the conditions that are required for the sunlight/burn damage to actually occur). This is just like Origins: Umbrella except rather than having an umbrella that prevents sun damage, you have a helmet with a custom enchantment that prevents sun damage, so it just adds some more... flexibility of how you can look without burning to death.