Spotlights are used for focusing attention on individuals speaking or performing on stage. Floodlights provide broad, even illumination over a wide area like for sports fields. Fresnel lights can be adjusted to produce either a focused spot or wider flood beam and are used in film, TV, and theater. Profile lights can physically adjust their lens to change the beam angle. Follow spots are controlled by an operator to track performers on stage and are commonly used in concerts and musicals. Par cans project a parallel beam and are used for rock concerts. Stage spots are fixed lights mounted on stage or overhead for theater, dance, and opera. Gels and gobos are inserts that can be placed in front of lights to filter and shape the