The 2120-C Two Stop Flashhead contains the controls to operate at full power or ratio the power and modeling light down two stops (-2) or turn the head completely off.
The 2120-C Flashhead comes equipped with a 1000 watt second flash tube (color corrected to 5500'K), 100 watt tungsten modeling lamp, 25' cord, and a mounting bracket with knobs for securing the bracket to a light stand and attaching an umbrella. This bracket also has a universal adapter base which allows it to mount to either a standard 5/8'' stud (with an optional accessory 4041 adaptor it can also mount to a smaller 3/8'' tube/stud).
CAUTION: This flashhead must not be used in the stop down mode if it is the only head plugged into a powerpack. There must be another flashhead plugged into the same pack and set to operate at full power or damage to the 2120-C will result. This will void the warranty.