Although the moon's light is less than the sun's, but in the darkness of the night that much [of] light is so precious.
I mean something like:
Although the moon's light is less than the sun's, but in the darkness of the night that amount of light, (however few / even if few / no matter how few), is so precious.
1- Does "that much light" in #1 could mean "that amount of light"? Note that I don't mean very much light, just the amount which is even less than the sun light. Do I need "of" in the phrase?
2- Are however few or even if few or no matter how correct and idiomatic to say the amount is not important?
P.S. its a part of a joke or a moral story, so don't get the sentence seriously