The flash modules of the Dark Knight series have an aluminium housing and have the protection class IP67 & IP69K, thus the flash modules are optimally protected against outdoor influences. The Dark Knight flash modules can be synchronised with up to 12 other LED flash modules of the series. Furthermore, there is a choice of 21 different flash patterns. There is a cover included in the scope of delivery, which you can mount with a click mechanism. The cover allows you to hide the mounting screws and thus obtain a finished look.