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Idea of colorful LED signs had came into existence after 1962, when a famous scientist named Junior Nick Holonyak developed the visible spectrum-based LED light for the first time in red color. This proved to be a leap forward from white lights used during old days.

During these succeeding years, many other technological experts and researchers of the sector, like T. P. Pearsall and M. George have brought many new advances in the technique associated with light emitting diodes, like high-brightness lights, yellow lights, green lights and high efficiency lights available for optical fiber communications. Introduction of LEDs in different colors have resulted in the launch of LED traffic sign systems.

If you look over the scenario of light emitting diode applications, you will find that LEDs do not have remained in practical application until the year 1968. This is so; LEDs were available at too much expensive rate, in which individual units cost about hundreds or thousands of dollars.

However, with the passage of time and consistent innovation in the area, particularly, the efforts of Hewlett Packard for development and mass production of various parts, costs associated with LED products, including traffic lights LED have reduced gradually to become a preferable option among large numbers of traffic control authorities belonging to different regions of Europe and America.

Most of the LED lighting systems and mini traffic light systems found now are cheap to design to become an ultimately and a commercially viable type of option. Eventually, majority of people including traffic authorities have found practical applications for light emitting diodes in the form of traffic signal LED products and other light or display fixtures, along with simple lighting systems. In fact, colorful light emitting diodes now serve preferable options for signage and visual displays, like LED billboards and traffic lights.

Today, LEDs have obtained huge applications, which gone beyond the imaginations of scientists and technologists during 1960s. LEDs are of preferable products in designing of signs for almost every type of establishment.

Whether it is community centers, schools, worship places and traffic control centres, these places have found huge increase in public attention while compared with other setups, which use only printed or static displays. Especially, the aforementioned is true for various fully colored LED displays and signs, which highlight various enticing animations and images on the top of necessary yet informative announcements.

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