Network Security and Variable Pulse Wave Form with Continuous Communication

A pulsed light communication device comprising:

• at least one transmission light emitting diode, at least one photo detector, and a controller in communication with said at least one transmission light emitting diode and said at least one photo detector, said controller generating a continuous uninterrupted modulated pulsed light emitting diode light signal transmitting information or data, said at least one photodetector having a sensitivity threshold detection level, said continuous uninterrupted modulated pulsed light emitting diode light signal having a wavelength in the visible spectrum and having an amplitude, said amplitude alternating between a first amplitude level and a second reduced amplitude level, wherein said second reduced amplitude level is greater than a value of zero or off and wherein said second reduced amplitude level is equal to or greater than said sensitivity threshold detection level and further wherein said controller varies said amplitude to exceed said sensitivity threshold detection level based on said sensitivity threshold detection level for said at least one photodetector.