If the project is a revision, whatever structural plans are available should be provided, with the results of committee's studies, to committee members and professionals. Members should consider a number of fixtures and control systems to decide which ones will meet each applications' requirements, then request quotations on several similar items for each application. If possible, the services of a church lighting designer, or at least a liturgical interior designer, could be valuable. Church lighting designers have faced similar challenges many times, have access to a wide range of products and possess technical expertise about various fixture and lamp performance. He or she should serve as market researcher and technical database.
Many denominations maintain files of pre-qualified consultants.
Often, the inclusion of such specialists saves churches money. For example, a few make purchases for the church at significant discounts from list prices. Also, when the committee interviews specialists like these, it should invite them to attend a service or two. If they accept, they're the right kind. Church lighting designers spend the majority of their time working on revision projects, many involving buildings not all that old, which means not enough research and time was devoted to the first efforts.