L104 is a designation that can refer to various things depending on the context. In the realm of transportation, it may refer to a specific bus route or a train line, providing public transit services in a particular area. In other contexts, L104 could denote a model number for a product, such as electronics or machinery. In the field of education, L104 might represent a course code for a class, often indicating the level and subject matter. Understanding the specific context is essential to grasp the full meaning of L104, as it can vary widely across different sectors and industries.