Standard Series Back Lights are designed to create high contrast silhouettes for Machine Vision Applications. All Back Lights are built using Modular Board Technology (MBT). Because we use MBT we are able to make back lights in 1" (25.4mm) by 2" (50.8mm) incremental dimensions. The result of MBT is even illumination over the length and width of the light (connecting the lights together creates dead spots between lights because LED spacing is not observed)The strobe line can be tied directly to 24 volt DC so the light remains on constant. All Standard Series Back Lights use industry standard 4 pin M12 Eurofast quick disconnect cables and are supplied with a 4 meter mating cable.