The US has many ceiling lights but uses them significantly less than other countries. There are multiple reasons for this. One reason is the cost of installing ceiling lights. Another reason is that Americans like to work in well-lit rooms and offices because they believe it increases productivity and motivation. The US doesn’t also have ceiling fans because the wiring in the US is in a grid pattern and can be unreliable in some areas. The National Electrical Code prohibits placing electrical fixtures directly over the flooring, and the National Fire Protection Association (NFPA) forbids electrical fixtures over combustible materials.