A monolight is a self-contained photographic flash lighting unit[1] typically found in studios.
In addition to power output, monolights have other, special considerations as they are meant to be used for large-scale, studio work.
Portability, consistency, feature set, parts availability and cost are prime considerations in monolights.
As such portability issues must be considered: Monolights are sometimes referred to as monoblocks [6] due to the containment of all power and controls in each individual flash unit.
This size and weight must also be weighed against a pack and head system, which typically have a much weightier generator box.
Inconsistent monolights makes computing the appropriate aperture next to impossible due to the variable light output.
Monolights made by mainstream companies generally have a higher parts availability in more places than off-brand products.