Features: 1) Streamlined and humanized external design 2) Imported Heiman flash tube from Perkin Elmer Optoelectronics GmbH, Germany, ensures accurate color temperature 3) Main capacitors imported from Japan ensuring adequate guide number 4) Built-in stable circuitry (working voltage range: AC180V-250V) 5) Internal fan for heat dispersion 6) Step-less light-regulation, synchronous output of modeling light and flash light 7) Infrared induction, voice and light indications for recharge, light switches off automatically 8) Trigger with low voltage, specially-designed transformer separating from AC power 9) Model: FY-320W 10) Flash energy (WS): 320 11) Guide Number (GN): 56 12) Flash power variation (WS): full to 1/8 13) Recycling time (S): 3.6 14) Flash duration (T=0.5s): 1/500 - 1/1000 15) Modeling lamp power (W): 100W halogen lamp 16) Trigger: flash inductor, manual trial, sync cord 17) Light-control distance: less than 10m 18) Color temperature: 5600oK 19) Voltage range: 180 - 250V (50Hz) Inner packing: Plastic bags and foam Outer packing: Decorated box (gift box) or as specified by the customer