Motorists can't miss these Large Directional Arrow Boards. The oversized design for use on large vehicles makes a big impact and keeps work zones safe. Features: Each Large Arrow Board has (14) 4" diameter amber lamps that are available in five styles: Standard LED, LumenX® LED, Mega-Bright LED, Ultra-Bright LED, and Incandescent. High-impact plastic Sun Visor mounting rings increase visibility up to 1/2 mile. Standard plug-in connectors allow easy removal and reattachment of the Arrow Board. Warn approaching vehicles with five operational modes (60 FPM): right arrow, left arrow, double arrow, center bar, and corner caution lamps. Fourteen heavy-duty threaded inserts accommodate a variety of mounting applications. All Large Arrow Boards measure 24" H x 2-1/2" D x 60" L and are constructed of sturdy, heavy-gauge, epoxy-coated aluminum. (Depth does not include Sun Visor mounting rings.) Model 02.7066 control box has a POWER switch, MODE selection dial, day & night intensity settings and flash pattern indicator lights, a 20' pre-wired harness, and a bail bracket for cab mounting. The control box measures 2-1/4" H x 5-1/8" D x 6" L. 12V standard (Model 05.2412.020 24V converter is available for LED models 02.7009, 02.7016, 02.7034, and 02.7052. Sold separately.) Mounting brackets are sold separately. Made in the U.S.A.