Compatible with Most TTL Systems | 400Ws, 1/512 to 1/1 Power Output | Up to 460 Full-Power Flashes | Freeze Mode: 1/3470 to 1/27,770 sec | 1/8000 sec High-Speed Sync | 0.01-1 sec Recycling Time | Group Color Capability | 30W Bi-Color LED Modeling Lamp