Color:White & Blue Compatibility: For a detailed fitment, please compare the size of the bar to your installation location. This item is for interior use only. Specifications: LED Bar dimensions: 18′ x 2.5′ Cord length: Over 6 Feet to the power switch and mode selector Number of LED blocks: 4 Number of modes: 7 Number of LED per block: 4 Flash Modes: This item includes seven modes modes of flashing/strobe.Each panel consist of 4 LED. This Strobe light unit consist of 4 panels for a total of 16 LED 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: 1x Traffic Advisor Strobe Light Bar Installation screws and Nuts INSTRUCTION MANUAL IS NOT INCLUDED Notice: All items are Brand New.We sell DIY (Do It Yourself) Items with a few exceptions.Any damage during installation will not be refunded. In most cases this installation will require you to drill holes. We take no responsibility in teaching you how to install. Professional installation is strongly recommended.