Specification: Voltage: 12V DC power supply (AC is not available) Power: 1W per lamp bead Color: Red+Blue, Red+Red, Blue+Blue，White+White Material: plastic shell, LED lamp beads Wiring instructions: Black is connected to the negative pole, the red positive pole is connected to various flashing methods while driving, yellow is connected to the positive pole, and the brake is connected with rapid flashing at the same time. The power cord plus the controller is about 82 cm Control box dimensions: (4.5x2.4x1.6)cm Exterior Wire length: 33cm For all DC 12V cars and Motorcycle Each light bar contains 3 led lights 2 different modes of strobing Up to 30,000 hours life expectancy Great for interior headliners Affordable strobe lights for your exterior grille Easy Installation, can be mounted on many locations Can be used as: car emergency lights, warning lights, daytime running lights, strobe lights Package Included: 2 x LED Strobe Lights 1 x Intelligent Control Box 4*screw