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Guide Number GN27( ISO 100/m )
Flash Mode E-TTL/M/Multi
Slave Mode Slave/S1/S2
Flash Control 8 levels of output control(1/128--1/1)
Flash-ready Indicator Red pilot light
Effective Flash Range 0.7-19.3m(quick flash:0.7-11.1m)
Recycle Time 0.1-4s
Flash Times 100-680 times
Power Supply 2 * AA(Not included)