Better than Before: With a redesigned COB, the Aputure LS 600c Pro II delivers exceptional brightness, offering 21610 lux at 1m at 5600K, 35 percent higher than the previous generation Compatibility: This model is compatible with the V-Mount New Reflector: Equipped with its new hyper reflector, it achieves an impressive 91500 lux at 1m, an 82 percent improvement over the LS 600c Pro with its original hyper reflector HyperSync Technology: Equipped with HyperSync technology, the LS 600c Pro II ensures flicker-free operation during shooting, while providing smoother 0.1 to 100 percent stepless brightness control