Other contributors have said "Are fluorescent tubes luminous?" is the same question as "Are fluorescent lights luminous or non-luminous?" If you believe that these are not asking the same thing and should be answered differently, click here
At first light it DOES sound a bit confusing. First, the definition of the term 'NON-LUMINOUS'; 'Not capable of PRODUCING light but can be capable of REFLECTING light from another source'. For...
Luminous bodies are insects that give a light, such as the glow worm. Non luminous bodies do not glow o their own.
it can also refer to things in space; such as planets, moons and stars