Unrivaled Battery Performance: The lithium polymer battery provides both DC power for on-location freedom and AC trickle-charge performance when the charge status is above 25% Dedicated Sony Camera Compatibility: The FJ400 strobe offers features like High-Speed Sync, TTL, and more. It is designed with a proprietary Sony hot shoe mount for the Sony camera Consistent Color Temperature at Every Power Level: It maintains a color temperature stability of 5500K (±150K) throughout the entire 9-stop output range. It features flash increments of either 0.1 or 1.0 stops and a 20W 5600K LED modeling lamp with auto-adjust and independent control