Here are the possible solutions for light quanta clue
Answer
Clue
Relevancy
photons
Clue
Light quanta
Definition
PHOTON, a quantum of light or other electromagnetic radiation
amounts
Clue
Quanta
Definition
AMOUNT, to come to in total
glorybeam
Clue
"The light" of "I saw the light!"?
laser
Clue
Light in a light show
Light-show light
Light show light
Light in a light show, perhaps
Definition
a source of high-intensity optical, infrared, or ultraviolet radiation produced as a result of stimulated emission maintained within a solid, liquid, or gaseous medium