Spec : - Flash Output : 120w - GN : 38 - Color : 5600K - Power : 220v/100v - 120v - Modeling Lamp : 75w - Recharging Time : 0,5-2sec - Flash Power Control : 8 steps - Flash Duration : 1/2000-1/800s - Buzz Function - Anti Preflash System - LED Precise Power Display - Premium Alumnium Housing - Multiple Auto Self Protection What #39;s in the box : - Studio Strobe - Modeling Lamp - Power Cord - Manual -Flash Duration: 1/2000-1/800s