The AlienBees B800 is a powerful, self-contained studio flash unit, producing 320 true wattseconds and 800 effective wattseconds of power, with 14,000 lumenseconds of output. The power is independently adjustable over a stepless 5 f-stop range from Full down to 1/32nd of the total power, in whole f-stop increments, and everywhere in between. This flashpower is independently adjusted on the back control panel, with a slide fader that shows marked f-stop increments.
This unit has a built-in slave tripper, to allow wireless firing where the unit will fire whenever it “sees” a flash from another source. This feature is disabled by plugging in the sync cord.
The B800 also contains a built-in cooling fan, so shooting for extended periods of time is not a problem.