Westcott FJ400 400Ws Strobe with AC/DC Lithium Polymer BatteryNever miss a shot again. The Westcott FJ400 is the first portable 400Ws AC DC strobe with under a second recycle speed at full power that offers an impressive 480+ full power flashes per charge. The lightweight FJ400 Strobe offers unrivaled performance with the most accurate color temperature throughout its entire 9 stop output range. Trigger the flash with the Westcott FJ X2m Universal Wireless Trigger or Canon RT system (available separately).