This is a Dedolight DLOBA2 100W On-Board Light. Designed for use with video cameras, the Dedolight DLOBA2 On-Board Head can be mounted by either screw or shoe mount (both included). It uses 20, 50 or 100 watt 12V lamps, which are available separately.
The on-board light is fitted with a daylight conversion filter and diffuser, which may be flipped into the light path or out of the way - flat against the top of the light. The front lens allows for wide angle coverage of modern video zoom lenses - 6° to 70° spread.
This light comes equipped with a four-pin XLR power cable, for use with many different camera/battery systems.