250Ws, Built-in AirTTL
Optional Air Remote TTL for Canon, Nikon
High Speed Sync and Freeze Mode
2 Asymmetrical Outlets
9 Stop Power Range: 1-250Ws
Uses Removable Li-Ion Battery
Up to 215 Full-Power Flashes
Short Recycling Time 0.03-1.35 Second
Flash Duration: 1/1,000 - 1/15,000 Sec.
Weighs 2.2 lb with Optional Battery