Two types of train lights: locomotive lamp and passenger compartment lamp.
》Locomotive lamp
Including headlights, sign lights and interior lights.
Head lamp, also known as headlights, is mounted in front and rear of the locomotive, and its shape and function are similar to those of the searchlight.The light source adopts ultra-high pressure spherical mercury xenon lamp. The power is 500W and 1000W. The power supply voltage is 50~110V DC. It must be activated by a trigger when working.Recently years，Train headlights gradually began to apply LED technology.

Sign light.A category used to indicate the direction of travel of the locomotive and the operating line.The front and rear lights are divided into two sides on the front side of the locomotive. The latter are installed on the rear sides of the locomotive (referred to as asymmetric models). The light source uses 60-200W incandescent or LED lights.

》Passenger Compartment lamp
It includes various lamps used in the cabin, such as ceiling lamp, wall lamp, mirror lamp and tail-side lamp.
>Ceiling lamp.It is installed on the roof of the passenger compartment, passages and corridors inside the compartment, and is the main type of lighting for the compartment.
>Wall lamp.Installed on the side wall of the car, generally used for aisles, corridors, door sides or other passages.
>Mirror lamp.For toilets, washstands, other functional compartments or areas.
>Tail lamp.Installed on the outside of the rear of the train, indicating the direction of train travel.
All compartment lights in the world adopt uniform and soft glare-free lighting, and diffused lamps are used to ensure sufficient illumination and uniformity in the car.

The luminaires in the compartment must be a flexible and convenient opening structure and good airtightness. For two types: rectangular and circular. In recent years, due to the rapid advancement of LED technology, the form of the lamp has become more diverse and beautiful.