The 105 4-cable universal quad light unit is recommended for any situation that requires immense power and the action-stopping ability of short flash. While it cannot achieve flash durations as short as the 105 2-cable (because the light unit cannot be operated at as low a power output), it has the same short durations at higher powers, plus the ability to handle 9600w/s! The 105 4-cable is constructed of aluminum, has forced air cooling and four standard power cables, which allow up to 9600w/s of power to be used with its four 2400w/s plug-in vented flash tubes. It also comes with a bright 250w quartz model lamp and protective tube pouch.