The phrase "appetite for light" is correct and usable in written English.
It can be used to describe a strong desire or craving for knowledge, enlightenment, or understanding, often in a metaphorical sense.
Example: "Her appetite for light drove her to explore various philosophies and seek deeper truths about life."
Alternatives: "thirst for knowledge" or "yearning for enlightenment".
Not only would they have a Brobdingnagian appetite for light, but they are designed to incorporate a new technology called adaptive optics, which can take the twinkle out of starlight by adjusting telescope mirrors to compensate for atmospheric turbulence.
In the unlikely event that "Dancer in the Dark" failed to sate your appetite for light industry, you could try the more placid, though perhaps more probing, experience of "Human Resources".
Both have also shared an appetite for lighter cultural fare in recent months, preferring movie comedies like "She's All That" and feathery musical selections such as the "Charlie's Angels" soundtrack.
It was published by Hamish Hamilton in May 1940, at a time when there was little public appetite for light-hearted war satire, and the book was a commercial failure.
Believing that both she and Joseph "hailed from the dark side" (though we also come to see her appetite for the lighter side -- she writes beauty articles to earn money, watches "Beverly Hills 90210" reruns and paints her loft entirely pink), the narrator becomes depressed after he gives her the brushoff.
In the meantime, my appetite yearns for lighter, more springlike fare.
This year, with another Patriots Super Bowl appearance whetting appetites for Keystone Light and high-spirited vandalism, the administration is taking strong measures to prevent yet another chaotic disturbance including declaring Southwest a no-go zone for nonresidents.
It is not a place for light appetites or slim wallets.
But Trump, poised to become the first major-party presidential nominee since Dwight Eisenhower who had not previously held elected office, appears to have an unusually light appetite for reading.
Aboundless and voyeuristic appetite for amateur videos has lit up one of the hottest Web sites of 2006: YouTube.com.com
The hardy mosquito fish, which has a prodigious appetite for mosquito larvae, is usually light grayish but may be spotted or blotched with black.
