Here are the possible solutions for tube light clue
Answer
Clue
Relevancy
diode
Clue
Tube that may be light-emitting
Definition
a type of electron tube
neon
Clue
Tube light
Light-tube gas
Definition
a gaseous element
notting
Clue
London Tube station — lit neon light tag (anag)
glorybeam
Clue
"The light" of "I saw the light!"?
laser
Clue
Light in a light show
Light-show light
Light show light
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
