Introducing the Nikon SB-1000 Landscape Flash.
Finally a flash powerful enough to light a landscape. The endless waiting for the right light is history. With the included 'Golden Hour' filter you'll bring your own sunset, anytime, anywhere.
A full tank (0,5 Gallon / 2 Liter) gets you 100 flashes at 24.000Ws with a recycle time of only 1m32s.
With it's 216lbs / 98kg it's not exactly a lightweight, you'll feel it with long mountain hikes, but the all terrain wheels will go anywhere.
Here's the spec sheet :o)