Many churches have stained glass windows that allow substantial light into the facility during daytime services. Lighting within the church is also an important aspect. The best kind of light for projection systems is incandescent and directional. The worst kind is uncontrolled fluorescent lighting. To avoid turning all of the lights off in a church to offer video projection, the lighting will have to be reviewed and, perhaps, modified to accommodate these concerns.
Many churches have a mixture of all three types of light.
Some can control the sunlight. Others have small enough windows that this is not a concern. While many churches have fluorescent lighting, most have incandescent or can exert control over their fluorescent portions. The church in Jacksonville was fortunate in that they had been utilizing video broadcasting in the past and already had worked out a lighting plan that satisfied the requirements for good projection. Summary Video projection has been variously called an art and a science.