A chase is an electrical application where strings of adjacent light bulbs cycle on and off frequently to give the illusion of lights moving along the string. With computerized lighting consoles, building chase sequences has become easier, while previously chases used mechanical means, such as a wheel with an electrified spindle which strikes electrical contacts for each circuit.
Creating a chase effect
In order to achieve a chase "strip lights" are most often used, especially when used in "theatrical" applications.
Similar design is used in computing, where it is known as "marching ants".
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