admittedly i had to look it up because no one ever told me what spotlight i was using (i’m a college student minoring in theatre and this is my first time on lights ever) but it looks like it might have been a source four ers? i just can’t find any pics online where it has that aperture adjuster. otherwise it looks identical to what i used!
The source four ers is an unconventional choice for a spot(usually it's ime a stationary light) but I can see it












