The Aputure LS 120D II is a powerful and compact daylight unit, with constant output at 5600K. The unit is as bright as a 1K Tungsten Fresnel while only drawing 180 watts of power. The ballast supports V-Mount power, which, coupled with its low-power-draw, makes it a good option for locations without power. This kit comes with two units. This unit is not compatible with Sidus Link®.