Samenvatting
At present, police patrol cars in the Netherlands are equipped with blue flash lights consisting of two sets of three hologen-incandescent lamps each with seperate reflectors. The sets are mounted at both ends of a cross-bar on the top of the vehicle roof. For a number of reasons however it was decided to replace these incandescent lamps by two Xenon strobe-lights. These flash alternatively with a similar flash frequency as is used with the incandescent lamps. The test method is described and the results are presented.