Chinks in Einstein's theory?

The speed of light stands at 300 x10^6 m/s in a Vacuum. The visible light wavelength is between 10^-6m to 10^-7m in the electromagnetic spectrum. This is merely a STANDARD for that Energy in transit. Micro-waves are below Infra-red in the electromagnetic spectrum and so there will be a difference - RELATIVE. The text talks of both the speed of light and Microwave Energy and theres the difference.