Vigilant® High Intensity L-856/L-864 (White/Red) with Infrared (IR) Vigilant® High Intensity L-856/L-864 (White/Red) with Infrared (IR) LED Obstruction Systems - D366-A57-SYS Application The Dialight Vigilant® High Intensity White / Red Strobe is the first all LED L-856 / L-864 unit designed for the lighting...