Signal construct sk 05 series led symbol indicators 5mm snap in mounting signal construct skid05404 a blue 5mm led panel indicator with an arrow shaped lens head and a 24 to 28v acdc operating voltage the indicator is of the snap in mounting type and has a frosted lens surface that gives a high level of light transmission and a clear onoff contrast signal construct skid05404 led indicator 5mm mounting blue 24 28 vdcac arrow