light housing 56 has a rectangular cross section an aperture 68 is located between and defined by the retaining fins 60 and 62 light from the led light strip is emitted through the aperture 68 and out of the opening 32 when the led light strip is turned on the visor channel 50 shades the recessed light housing 56 and its aperture 68 from sunlight or other ambient light this prevents an observer from seeing u201c phantom u201d light caused by sunlight reflecting off the light strip the upper channel wall 52 and the upper retaining fin 60 are perpendicular and thus form an upper crook 70 in the upper corner of the visor channel 50 the lower channel wall 54 and lower retaining fin 62 similarly form a lower crook 72 in the lower corner of the visor channel 50 one or both of the crooks 70 and 72 in the visor region 58 will remain shaded even in strong ambient light and or sunlight at a low angle such as shortly after sunrise or before sunset therefore when light is not emitted through the aperture 68 the channel will appear at least partially darkened to an observer even in bright sunlight when light is emitted through the aperture 68 the darkened crooks are not visible to an observer the visor region 58 thereby substantially improves an observer 39 s ability to determine whether or not the led light strip is turned on and emitting light fig4 shows a cross section of another alternative embodiment of a gate arm 100 having.