55 and appropriate drive circuitry 59 for the leds 61 illuminating the letter strokes the leds illuminating the left 62 and right 64 arrows will preferably have individual switches 63 and 65 allowing the installer to power the appropriate arrow s for wherever the sign is mounted in the case of a one color sign the switches need only be single pole single throw spst to turn the appropriate arrow on or off in the preferred two color embodiment shown the switches switch the arrows from foreground color to background color the single pole double throw spdt switch arrangement shown would be appropriate when bi color leds are used simply switching the leds from the foreground to the background drive polarity when the leds are switched to foreground color i e red the arrow stands out from the contrasting background when switched to the background color i e green the arrow blends into the background and becomes invisible it will be recognized by one skilled in the art that the same effect can be achieved with single color leds by putting two sets of leds in each arrow one for each color and using double pole single throw dpst switches at 63 and 65 to enable.