Russ of course is correct. The term light, photon and EM waves are different names for exactly the same thing. We can measure the speed of light. The speed of light (c) is used to define the meter. You are really going about this wrong. You clearly are not up to date on many, if not most, of the well understood aspects of physics. You should be asking questions instead of making statements. Here is a piece of advice. Someone who makes declarative statements that are clearly wrong is considered a fool. Someone who asks questions to increase their knowledge is considered wise.