Monochrome
Single Color LED signs are mostly used as a text message center. They are the simplest of the LED signs, and contain only one color.
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Tri-Color
Tri Color LED signs are mostly used as a text messages center. The various color options gives the programmer more options when creating messages.
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Full Color
Full Color LED signs are mostly used for Picture and Graphic advertisement. The 137 billion color choices give the pictures and graphics a realistic feel. Text messages are also an option in a Full Color LED sign.