I am confused regarding the heat properties of electromagnetic radiation. Wiki states "Any electromagnetic radiation can heat a material when it is absorbed.". Does this imply radiation with wavelengths in the visible light region can also heat a material, that is, increase its temperature? From wiki again: "heat is the process of energy transfer from one body or system due to thermal contact, which in turn is defined as an energy transfer to a body in any ". As light is energy, this should imply that light is heat? If that is the case, why does purely visible light without any additional radiation not raise the temperature of the object it shines on? Or does it, so small that it isn't noticable without measuring instruments?