The Novatron M150 Monolight has a four-stop power range, adjustable in 1/10 stop increments. The modeling light switch permits constant full power, or variable with the flash power selection. The M150 also includes an internal, switchable slave triggering device. It comes equipped with a 150 w/s, color corrected to 5500 K plug-in flashtube and 150 watt modeling light. The mounting bracket attaches to a 3/8" or 5/8" light stand. Novatrons self contained Monolights take all the elements of a power pack, flashhead, and reflector and combine them into one lighting unit thats very easy to set up and transport.