● build-in 2.4G system ● bowens adaptor ● 4Ws-400Ws,8stage ● 1/1-1/128 ● recyle time 0.2-2.5s ● 79GN(ISO 100 1M) ● 4000mAH(59.2Wh）battery capacity,number of flashes at full power after full charge 400 ● flash duration up to 1/6500
