Continual Light no end

You touch one and only one object that is no larger than 3 inches diameter, like a coin or a gem. Object has brightness of a hooded lantern a 10 foot radius and dim light for an additional 10 feet. The light can be only a white light. Completely covering the object with something opaque blocks the light. The spell automatically ends if a darkness spell or a Maddening Darkness spell is cast that is of equal to or of a higher level spell slot than was used to cast this spell. Can be cast from a caster that has the spell as a ritual, but it will take ten minutes but does not take a spell slot, only one of these rituals can be done in a 24 hour period. having more than one coin does NOT double the effect or brightness / radius.

Can NOT be cast on a living creature, can be cast on an item that creature is carrying as long as it can be directly seen and touched by the caster of the spell through out the entire casting time.