Description 1 Universal Fit All vehicles automobiles with a 12V power source 2 This item includes seven modes modes of flashing strobe Each panel consist of 4 LED 3 This Strobe light unit consist of 6 panels for a total of 24 LED 4 The light bar part is Weather proof Shockproof Convenient to use 5 Easy to installation No instruction included Specification MaterialAluminumPCLED Light ColorWhiteRedNumber of LED blocks6Number of modes7Number of LED per block4Size67X6cm 27 x 2 5 Flash Modes Mode 1 Flashes between block panel 1 2 5 6 and block panel 3 4Mode 2 Flashes between block panel 1 6 and block panel 2 3 4 5Mode 3 Scan from center block panel to out block panelMode 4 Scan from out block panel to center block panelMode 5 Flashes between block panel 1 2 5 6 and block panel 3 4 a few times follow by flashing all block panels Mode 6 All block panel are constant flashingMode 7 All LED are on contantly No flashPackage Included 1 X Traffic Advisor Flash Light Bar Come with Switch 2 X Screw2 X Nut