ams OSRAM has conducted field testing in both Finland and Florida. The sensors data was compared to that captured by the National Lightning Detection Networks (NLDN). The data was then analyzed by one of the leading Lightning research institutions (Florida Institute of Technology) and found to correlate such that the AS3935 could be used as an early warning system for lightning related storms. It was proved that the AS3935 not only detected cloud to ground but also cloud to cloud which the current systems are NOT able to detect.