Specifications include, but are not limited to: 2.1 PDMS Display 2.1.1 PDMS shall have a full matrix light emitting diode (LED) display. 2.1.1.1 LED’s shall be easily user replaceable. (Plug and play) 2.1.2 PDMS full matrix display shall be a minimum of 24 pixels tall by 48 pixels wide. If different, please explain size difference. 2.1.3 Pixels shall consist of a minimum of four LED’s 2.1.4 PDMS display shall be at minimum 42 inches tall by 76 inches wide and consist of individual water tight LED panels. 2.1.5 PDMS shall be capable of displaying standard letters and graphics 2.1.6 PDMS shall be capable of displaying three lines with a minimum of 8 characters depending on font. 2.1.7 PDMS shall be capable of displaying varied MUTCD standard road construction graphics. 2.1.7.1 PDMS display shall be able to be moved up and down for easy viewing. 2.1.7.2 PDMS display shall be viewable at the standard 30 degree viewing angle. 2.1.7.3 PDMS display shall have a manual winch style lifting mechanism. 2.2 PDMS Power Supply 2.2.1 PDMS power supply shall have onboard energy collection and storage 2.2.2 PDMS shall be equipped with solar panels capable of collecting adequate solar energy all year in and around the Lincoln Nebraska area. 2.2.2.1 Solar panels shall be adjustable – tilt and rotate.