The correct form would depend on the specific context in which it is being used.
If "MorningLight" is intended to be a compound word, then it should be written without a space between "Morning" and "Light" (i.e., MorningLight). This is known as a closed compound word and is commonly used when combining two words to form a new word with a different meaning.
On the other hand, if "Morning Light" is meant to be two separate words, then it should be written with a space (i.e., Morning Light). This is known as an open compound word and is used when two words are used together to convey a specific meaning but are not combined into a single word.
To determine which form is correct, consider the intended meaning and usage of the term in the sentence or context you are referring to.