• 4.5V LEGO trains

    Two brick-built trains on parallel tracks: a vintage black-and-red steam locomotive on blue rails to the left and a modern yellow-and-blue passenger train on grey rails to the right.
    Inspiration & Features

    60 Years of Motorized LEGO Trains: From 4.5V Batteries to Bluetooth

    From blue 4.5V rails in 1966 to Bluetooth trains in 2018, we trace six generations of LEGO railway power, controls and the compatibility compromises collectors still face.

    Posted on The Brick Archivist