Specifications include, but are not limited to: SIGNAL TRAILER – SOLAR POWERED WITH LED CONNECTED ARROW BOARD AND WIRELESS CONTROLLER LED ARROW BOARD LED arrow boards must be of aluminum, weatherproof design measuring approximately 48-inches x 96-inches (type “C”) set up for wireless operation. Arrow board must have a minimum of 23-amber PAR-46 LED warning lamps on the front panel face and 3-amber LED “mode” lamps on the rear panel face (see Illustration). The rear “mode” lamps must be sequenced with the front lamps. Front panel LED lamp assemblies must use wide angle LEDs and have bulb shields installed. All internal wiring connections must be crimped, soldered and sealed with shrink tubing and RTV silicon. No Scotch-Lock style connectors will be accepted. Outer skin must be a minimum thickness of 16-gauge (.063) aluminum. Arrow board must have a non-reflective black coating. When in the working position the minimum distance from the road surface to the bottom of the arrow board shall be 7-feet.
