It is the type of fixture that is controlled by an operator standing beside it. Although different followspots sport different features, most will let you adjust the beam size, instantly change the color, and many will let you lock pan and tilt adjustment. The beam can go from narrow to wide, but shutters are not available on the fixture to shape the beam, nor is it able to utilize patterns. Often barn doors are used to shape the beam. The lens is usually part of the lamp , so by changing the lamp type you can change the beam angle.
Flood lights are relatively inexpensive, durable and lightweight.
They cannot support patterns, beam adjustment or any other accessories except color. Also, the audience would not know where to focus their attention. In order to achieve the desired look and intensity of lighting for your production, it is necessary to use dimming and control. Almost all theatres and performance spaces have some sort of dimming and control system. But portable dimming and control also exists for temporary applications, outdoor or alternate area performances.