Westcott FJ400 II Strobe 1-Light Backpack Kit with FJ-X3 M Wireless Trigger and 5500K ConsistencyThe Westcott FJ400 II Strobe 1 Light Backpack Kit comes with cutting edge features. This kit includes FJ400 II Strobe, FJ Pro AC and DC Battery, FJ X3 M Wireless Trigger, Magnetic Gel Pack, Rapid Box Switch Octa S with Insert, and Lite Traveler Backpack. Perfect Blend of Power and Portability Building on the success of the flagship FJ400 strobe, the FJ400 II Strobe 1 offers 400Ws of flash power in a compact design, striking a perfect balance of power