With this 'universal lighting set', hobbyists can equip their model railway layout with atmospheric lighting. Effective LED lighting can be easily planned. Miniature houses, stations and engine sheds can thus be illuminated realistically. The flickering light of an electric welder or a forge fire are also possible. The learning package provides the necessary knowledge about parallel and series connection, determining the appropriate series resistors, connection voltages and power consumption, load limits and optimized circuit planning.