2x 180W Studio Flash Kit Godox K180A 2-light studio flash kit for Photography: features 75W modeling lamp and 180W 5600K strobe function, built in energy save sensor. Flash output is adjustable stepless power from 1/8, flash duration: 1/2000-1/800s, GN 42. Satisfys the light requirements in different environment. Equipped Wireless Flash TriggerBuild-in light sensor allows 2 lights strobe synchronously, please set receiver and transmitter at the same channel and make sure master light is able to reach another lamp to realize synchronization. wireless control working distances is within 30 meters. Godox RT-16 strobe trigger is compatible with Nikon /Canon /Sony(for single-contact point hotshoe, NOT for MI hotshoe) /Fujifilm /Olympus /Pentax hot shoe.