Compatibility: All cars and trucks that are equipped with a 6 to 30 volt DC power source. Features: 360 degree coverage 7 different strobe patterns Fully encapsulated electronics Memory function to recall last pattern used 6 foot power cable Professional design Highly durable and made to endure harsh conditions Specifications: LED Bar dimensions: 14.5" x 4" Number of LED blocks: 6 Number of modes: 7 Number of LED per block: 6 & 3 Included Following flash pattern: Mode 1: Flashes between block panel 1 and block panel 2 Mode 2: Flashes from both block panels at same time Mode 3: Scan from right block panel to left block panel Mode 4: Scan from left block panel to right block panel Mode 5: Flashes between block panel 1 to block panel 2 a few times follow by flashing all block panels. Mode 6: All block panel are constant flashing Mode 7: All LED are constan on. No Flash Package Includes: 1 x strobe light bar with 4 magnetic mounts and hard wired cigarette plug with control switch Installation screws and Nuts INSTRUCTION MANUAL IS NOT INCLUDED