The Aputure LS 600c Pro II is the newer optimized version of the LS600c. The new designed LED engine produces more output and higher color accurancy. The LS 600c Pro II has a new light engine design that increases output efficiency while maintaining power draw and color quality. A new formulation of LED emitters raises the output of the bare light by 35%. The new design is even better with modifiers, yielding 82% more light when used with the included Hyper-Reflector and 70-85% more when paired with the F10 fresnel. Now at 711rent. Here is what aputure states about their new version: The LS 600c Pro II is a color-tunable point source COB light. With its Bowens mount it can accept modifiers to become a fresnel, a soft light, a projector or a hard open face par. Add its portable size, dual battery mounts, and CRMX/DMX/Bluetooth connectivity, and the LS 600c Pro II is the workhorse do-everything light. The original LS 600c Pro was already the leader in this category. The LS 600c Pro II improves upon its predecessor with nearly double the brightness, higher flicker-free performance, smoother dimming and IP65 weather resistance.