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The Ringway Light Activated Switch range uses a light sensitive resistor to detect incident light above a user-
set level and operate a one-shot output. Four light switch options are currently available: 'LIGHTSW' designed
to work in Ringways proprietary traffic control system; 'LITESWWC' and 'LITESWPBS' which are general
purpose switches providing a 24V output when activated, while 'LITESWFP' is a general purpose 24V switch
fitted in a flameproof enclosure for use in Group 1 explosive atmospheres.