The production of light is always accompanied by the emission of electrons. Example, when a candle flame emits light by the combustion of candle wax where the oxidation process of candle wax produces light which I believe can be considered an ionization effect or an oxidation process since oxidation could in fact be considered an ionization effect since the base structure is losing electrons or electron. Also, in the case of decelerating electrons that are initially electrons that ostensibly originate from an ionization effect. This is certainly not purely an ionization process but the electrons do originally originate from an ionization effect since electrons are formed by ionization and with this process of ionization light is transformed from the raw motion of an electron to light energy which is experimentally verified. Therefore, one could say that the formation of light is essentially part of an ionization process where electrons are emitted or one could say the affect of the electron that produces light which is assume as diametrically part of an ionization effect. What do you think, mutually inclusive or beleterallyterally exclusive phenomena?