FEATURESStrong Power and Abundant Functions- AD600 has 600Ws and GN87(m ISO 100, with AD-R6 standard reflector).- Stable color temperature at 5600±200K over the entire power range.- 9 steps of power adjustment(1/1 to 1/256) offer better lights effects.- Fully support High-speed sync (up to 1/8000 seconds), first-curtain sync, and second-curtain sync.Professional Lithium Battery Pack with Great Flexibility- Professional lithium battery pack has large capacity(11.1V/8700mAh) to provide 500 full power flashes and recycle in 0.01.