Powerful and versatile, the Dynalite MK8-1222 RoadMax 800 W/s 2 head kit is used for lighting the subject with a main and a fill light.The MP 800 800W/s Roadmax power pack is capable of firing two additional heads adding to the realism of any subjectIt can fire using the sync cord or with the built-in 32-channel Pocket Wizard brand radio slave receiverThe two MH2050 Roadmax flash heads with a 2000 w/s flash tube is lightweight, fan cooled, and economicalThe built-in recessed reflector with 140° coverage has no hot spot even for light dispersionThe lack of pigtail provides a better connection to the power pack and saves a lot of space