Unique Features: Vivid Light Bars The Warning Emergency Flashing Magnetic Light Bars are the mini dual color light bar, share the same patterns. This Magnetic Light Bars are created from high strength Aluminium Alloy Housing, show elegant and fashion simplicity. A few small magnets below the light kits make the installation more easier. There are bracket mounting holes at both ends of the light bars. Specifications: Dimension: 12", 18", 23.5", 29.5", 35.5", 41.5", 47", 53", 59" (L)* 1.5cm (W)* 1.4cm (H) LED Power: 6W, 9W, 12W, 15W, 18W, 21W, 24W, 27W, 30W. Operating Voltage: 12V DC Mounting Bracket: Magnet Mounts Body Color: Sliver Color Temperature: 6000K Waterproof Rate: IP68 Material:Diecast Aluminum Housing Lens Material: PC Working Temperature: -40ºC~+85ºC Lifespan: >30,000hrs 15 Pcs * 0.2W each circuit board Order includes: 2*LED magnetic light bars 1* rocker switch Please choose color as request: * 12" / 23.5" / 35.5" / 47" / 59" can choose all color options * 18" / 29.5" / 41.5" / 53" are odd number circuit board, You can only choose: ALTERNATING white-amber Remark: Kindly remind: the Warning Emergency Flashing Magnetic light bar only can connect to 12V. If you hook up to 24V, it will burn out. One year warranty Any questions, kindly contact us.