Industrial lights can be divided into normal lights, emergency lights, duty lights, guard lights and obstacle lights. The emergency lights include standby lights, safety lights and evacuation lights. Industrial lights should meet the following requirements.

First,when the normal lights are extinguished due to a failure, equipment lights should be installed in places where it is necessary to ensure normal work or activities continue.

Second,when the normal lights are extinguished due to a malfunction, safety lights should be installed in places where the safety of persons in danger needs to be ensured.

Third,when the normal lights are extinguished due to a malfunction, evacuation lights should be installed for exits and passages that need to ensure the safe evacuation of personnel.

Fourth,duty lights should use part of normal lights that can be controlled separately or part or all of emergency lights.

Fifth,guard lights should be installed within the guard range according to needs.

At last,the installation of obstacle lights should follow the relevant regulations of the local aviation or transportation department strictly.