For emergency room lighting, the lumen output provided by a fixture is extremely important. Since, this is an area that needs high visibility, the main source of general lighting will be delivered from overhead fixtures, even though there will be individual task lighting lamps present. These fixtures need to have a high enough lumen output to ensure proper visibility for both patients and hospital staff. Before you start considering which lumen output would be sufficient, we recommend looking at the directional spread of the illumination beam as well. For instance, if a fixture provides a more focused beam, the light output can be overly harsh and uncomfortable to the eyes of both staff and patients. The most frequently used lighting option used in emergency rooms is tube lighting in either 4-foot or 8-foot length increments, since they deliver a more evenly distributed light source over large areas.
We recommend choosing multiple lamps fixtures. For example, a single lamp unit has no backup system if the bulb fails, whereas in a multiple lamp fixture typically only bulb fails at a time, which is why it is ideal for settings where lighting being maintained is crucial. Even though three lamp options would be sufficient, we suggests a four lamp option since you will be able to retain more light in the event a lamp fails.
It's important there should be few shadows generated by lighting when it comes to an area like an emergency room. We recommend opting for recessed lighting fixtures, since they will be neatly placed within the ceiling. This means the light output will be projected down to the floor, creating very few shadows from the light being projected from the sides of the fixture. Whereas, suspended fixtures provide both uplight and downlight which can create unwanted shadows.
Even though recessed troffer lighting is the best solution for emergency rooms, doesn't mean it is the only solution available. Implementing various types of lighting fixtures will help create a well-balanced level of lighting while creating an inviting atmosphere to reduce stress levels patients commonly experience. We recommend implementing some carefully placed wall sconces, which can be installed in a nurse's station or along walkways, to help add another layer to the lighting plan.
It's also important that the right color temperature is being emitted. For instance, if lighting is too warm, it impedes the CRI which is essential for working with patients. Whereas, if the lighting is too cool, it can be harsh and displeasing on the eyes. We recommend implementing a color temperature that provides both comfort and visibility. We recommend using a more white than yellow color tone on the Kelvin scale, which be between 4000-5000K.