The technology of automotive light systems is developing rapidly.More and more functions have been developed or are under development (e.g.aCOL, glare free high beam, marking light, predictive bending light).New technologies (e.g.camera based systems, GPS, LED, Laser) allow not only very new functions, often the same function can be realized by different methods.An Example: glare free high beam can be put into practice by a Xenon lamp and a drum, by LEDs with a drum or by using a LED-Array.The degrees of freedom are considerable increasing.The more degrees of freedom there are the more the benefit has to be evaluated in comparison of static or dynamic solution for one function.Safety and driver acceptance have to stay in the center of such evaluations.The most challenging systems which are under development are headlamps based on LED arrays.Are they better than conventional systems? Are they perceived as better systems by the driver? Or in other words: which properties does an LED array headlamp need that these conditions are fulfilled? This paper tried to show the differences between static and dynamic realization of adaptive driving beam.The huge complexity of modern headlamp requires to consider them as a complete system.Single components have to be evaluated and adjusted.Automotive light systems can only be introduced to the market successfully if safety is really increasing and if they are accepted by the driver and other road users.