Specifications:
circuit design: insulated gate bipolar transistor (igbt)
guide number: 56 (iso 100, 180mm)
flash coverrage: 18-180mm
manual, automatie zoom
swinging/tilting flash head(bounce flash)
flash mode: ttl, m, multi, feb,slave, s1, s2
hss capability (up to 1/8000s) on or off camera
light rotation: 0°- 180°horizontally and -7°- 90°vertically
the wireless trigger: wireless induction flash lighting
wireless triggering distance: 20-30m / 65-98 feet indoor, 10-15m / 32-49 feet outdoor
lighting times: 100-1500 times (aa alkaline cell used)
color temperature: 5500k
flash time: 1/200s-1/20000s
flash control: 8-step power control(1/128-1/1) step length is 0.3ev, total 22 fine-tuning stalls
slave group and unit: 4 channels(1 2 3 4); 3 groups(a,b,c)
peripheral interface: hot shoe, pc mount, external charge mount
additional features: rear curtain sync, pc sync, sniff mode, exposure compensation, custom function, power saving mode, over heat protection and automatic save function.