Sorry to inform you, but... If there is light, there is heat. It's because there are 2 ways to create light. First, electrons. Well, those give heat ofcourse. Second. Chemical reactions. Ever heard of Collision Of Atoms? That's what happens if you want to do some chemistry. If atoms collide they will keep going faster and produce heat.
Conclusion: Your theory is WRONG
HAHA. Sorry but where did you learn about flourescance?! This occurs when a decomposition (or reaction) emits its energy via light not heat. The energy of the reaction is "stored" in one of the products as it is created in a high energy state. The light energy is then released when the electrons drop to the more stable energy state. This is the same type of idea of transition metal complex colours, except this is when the complex absorbs certain light energies depending upon its do or dt (depends upon the type of complex) and whether it is possible for the metal to attain a high spin configuration from its low spin configuration due to electron spin pairing rules (complex type rules and ligand type also come into this quite significantly but is quite complex (yeah you got the pun...)). Thus giving us the reason why they are coloured and how strongly they are coloured.
Light is therefore possible without the expulsion of heat (especially in bioluminescence as these reactions are carried out by enzymes and occur MUCH more easily than the harsh conditions occuring in a conical flask).
Maybe you should go to school instead of copying some nonsence from the internets..
Why is it that Flat-Earthers are always accused of ignoring evidence, but when Round-Earthers are provided with evidence (which can actually be found in many school textbooks), they can ignore it with statements like that one.
Yes, there is light without heat. There are reasonably simple experimental setups for checking that fact at home (or at school, as a matter of fact, so you can ask your chemistry teacher about them). Or you can just buy a glow stick (or "snap light").
You said above that there are two methods of creating light, and then you sort of posted the equivalent of clueless mumbling ("collision of atoms something something...") as opposed to actually saying what these methods are - probably because you have no idea how light is actually created. There are quite a few more than two methods for creating light.
But on the other hand, I think you are the same guy who thought that mobile phones work via satellites. I guess you think that all those mobile phone antenna towers are purely for decoration.