Neewer 600W GN87 HSS Outdoor Flash Strobe Light for Nikon DSLR Camera,with 2.4G Wireless Trigger&8700mAh Battery to Provide 500 Full Power Flashes Recycle in 0.01-2.5s Bowen Mount (NW600BM) 600W strong power,0.01-2.5s recycle time, 500 times full power output, GN87, 9steps(1/256 to 1/1) power output High quality lighting and great portability,Equipped with a 10w LED modelling lamp and a big capacacity lithium battery pack (11.1v/8700mAh). Support M/Multi flash system of Nikon;Slave unit in a wireless flash group,2.4G Wireless transmission and Wireless control.Dot-matrix large LCD screen, easy to understand and control;Support USB firmware upgrade,have 3.5mm sync jack Bowen Mount outdoor flash to enable mouting your bowen mount accessories, umbrella hole for inserting your photography umbrella for more dynamic effect The kit included:(1)NW600BM Flash Strobe Light+(1)2.4G N1N Wireless Trigger for Nikon DSLR Camera