The trains of Xiamen Metro Line 3 are manufactured by CRRC Changke Co., Ltd. and operated by Xiamen Rail Transit Group Co., Ltd. A 6-car formation with a maximum operating speed of 80 kilometers per hour.

The entire car of the Ocean City themed special train is made of glowing light strips on the roof, and the lampshades of the roof lights are printed with exclusive Xiamen ocean themed patterns, including white dolphins, turtles, egrets, waves, etc. Provide passengers with a travel experience of exploring the ocean.

The six carriages of the city themed special train each have an administrative district theme, and the middle roof integrates the most distinctive elements of Xiamen's six administrative districts. In the form of creative patterns, the patterns of attractions such as Gulangyu, Wuyuan Bay, Chen Jiageng Memorial Hall, Tianzhu Mountain, Beichen Mountain, and Xiangshan are printed on the middle roof and side light strips of the carriages, like a walking city card, allowing passengers to enjoy the scenery of Xiamen and quickly understand its charm while riding.

There are lighting fixtures in the carriage that conform to the theme of Xiamen's regional characteristics:

1. Customizing vivid and rich ocean and city themed patterns on the lampshade is an important component of the overall theme style of the train, bringing passengers an immersive experience.

2. The train adopts a mid roof lighting system, with lighting modules replacing the ceiling to provide more abundant light sources.

3. Equipped with intelligent photosensitive function, it can automatically adjust the brightness according to the external environment, and the interior of the carriage always maintains the optimal lighting effect.