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 flash power is independently adjusted on the back control panel, with a slide fader that shows marked f-stop increments.

Utilizing advanced durability flash capacitors, coupled with axial-flow thermodynamics, the B800 minimizes heat build-up, has increased overall durability, and shorter flash durations.