Specifications include, but are not limited to: 1.Flash Rate – 1 per second 2.Flash Duration – 40 to 600 milliseconds, user controlled 3.Delay between units – 50 milliseconds to 200 milliseconds; user controllable 4.Patterns – 5 “march” patterns to choose from 5.Battery Status Indicator (Beacon-Style) 6.Remote Control of Lamp parameters; Range of Remote Control Unit = 200 meters 7.Range between Units – recommended max. 100 meters 8.“Marker” function to designate truck entrance to work zone (Patented) 9.Visual Distance – 900 meters – night time (I.T.E. Type A,C Lamp – Compliant) 10.Optical dispersion – +/- 24 degrees from centerline horizontal; +/- 15 degrees from center vertical; independent control of front/back face illumination for Barricade-Style lamps.