Emergency Caution Warning Flashing Construction Review

【Slim Design】: Ultra slim but super bright! 20LED as light source, Slim design by high quality aluminum alloy covered with PC optic lense. 【Easy Control】: Flash Synchronously, 18 Different Flashing Patterns, Last pattern recall/memory function. Low power consumption.Three wires with different colors - black connect to negative, red to postive and touch the yellow wire to the red one to select pattern. 【Installation】: Waterproof,Support 12V&24V power, Universal fit for all 12/24V vehicles, SUV, Pickup Truck, Motorcycle, Van, etc. You can install the light on any vehicle surface, like the roof, body, tail or headstock. 【Package Includes】: 4X Ultra Slim 20-LED Warning Caution Strobe Light + 4X Protection Pad + Mounting Screws. 【SERVICE】: If any questions, please feel free to contact us by email.