Overheat protection:built-temperature detection(thermal protection)
Support second-curtain sync:use a slow shutter for making smear subject, the flash will be off the moment the shutter flash spill, this is the rear-curtain sync function.
Guide number: 54 meters (ISO 100, 105mm)
Circuit design: Insulated Gate Bipolar Transistor (IGBT)
Flash mode: TTL / M / RPT(repeating) / MA(semi-automatic)
Zoom range: 18mm, 24mm, 28mm, 35mm, 50mm, 70mm, 85mm, 105mm, 135mm, 180mm
Vertical rotation angle: 0 to 90 degrees
Horizontal rotation angle: 0 to 3600 degrees
Power: 4X AA Batteries(Alkaline or Ni-MH are usable)
Flash control: 8 grade high-speed control(1/128-1/1)
Recycle time: approximately 3s (AA alkaline cell used)
Lighting time: 100-1500 times (using AA alkaline cell)
Color temperature: 5,500K
Flash time: 1/200s~1/20000s
Wireless triggering distance: 20-30m dindoor, 10-15m out door
Additional function: PC synchronous,sniff mode,overtemperature protection
Dimensions: 200 x 75 x 57mm(extended state)