There are many types of photoluminescent emergency exit signs that are used for all sorts of purposes. There are commercial exist lights, industrial exit lights, but there are also governmental and residential exit signs that can be extremely useful in case of any kind of situation that requires their use.
Some emergency signs come with lighting, but there are also others that have a standard and non-luminous material that is meant to be viewed with enough light in the area. Most buildings will show people the way out with signs that are mean to help them evacuate any structure in case of a fire or an earthquake. There are also other reasons why people would need to get out of a building and that is why having emergency lights in the area is extremely important.
There have been many situations when people have been able to get themselves out of a dangerous location thanks to the use of the emergency signs. This is not something to be taken lightly because it can really help save many lives. Most buildings in all areas of the world require that buildings have these signs installed in order to be ready for any disaster. This is a very important priority for the safety of the people who go into those structures every day.
A number of companies in the world are manufacturing these signs, but in order to choose a good emergency sign, you need to make sure that the exit message is clear even without words. A graphic that gives the person a very good idea of the purpose of the sign, is going to be essential for emergency exits to be efficient.