Every cinema has a projector, which is the basis of a conventional cinema. For cinemas that want to offer their viewers a premièred film, it must be a DCI certified projector. These DCI projectors are produced in 2K and 4K resolution. Projector outputs range from 5,000 lm to 60,000 lm. The conventional technology of lamp projectors nowadays gives way to modern DCI projectors, whose light source is an RGB laser module, offering higher image quality and lower operating costs.