This invention relates to a “structure of reformed traffic light”, comprising of a signal box enclosing at least one set of light sources arrayed in square or round matrix. It features a set of light source adopting Light Emitting Diodes (LED) as lamps and each LED contains at least red and green semi-conductor chips (hereinafter abbreviated as chip) to emit red, green and amber lights. Furthermore, it is the traffic control signals that control the lights. By applying the foregoing features, an all-in-one traffic light is invented with advantages such as lighter weight, reduced dimensions and cost effectiveness for installation, repair and maintenance in comparison with the existing traffic lights.
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