-600Ws, 9 steps of power adjustment(1/1 to 1/256).
-Stable color temperature at 5600±200K over the entire power range.
-High-speed sync (up to 1/8000 seconds)
-80M Wireless Control with precision.
-500 full power flashes and recycle in 0.01-2.5 second.
-10W LED modeling lamp can adjust light brightness in three steps.
This is an amazing 600w unit that will overpower the sun. Really good condition. For most of its life I've had it in a carry case. The extension head lets you put the unit on the ground or carry it on your shoulder.
Upgraded metal locking lever. (Comes with a plastic lever that doesn't support nearly as much weight for modifiers.) Also comes with carry case, charger, and reflector modifier.
The price is $450 firm. I am not accepting offers at this time. $549 + $68 for both on Amazon.