Features: 100% brand new and high quality Installation is simple, does not affect the beautiful appearance, you can take off at any time. Energy-saving and brighter than ordinary lamp beads, more convenient. Especially in foggy days and rainy days, the application effect will be better and the warning effect will be better, avoiding rear-end collisions. Meeting the needs of car-loving people in search of fashion and customization. When you go out to play in groups, turning on the flash lights is different. Turn on the flash when parking and resting on the road or adjusting your car on the road will have a warning effect, which can remind the car behind to avoid the accident and reduce the occurrence of accidents. The product shell is anti-rolling, waterproof, dust-proof, oil-resistant and corrosion-resistant. Sensitive light sensing design, the texture is very real, and the service life is longer. Package Includes: 1x Warning Flashing Light Specifications: Material:ABS Size:Approx.9.4x9.5x12.8cm/3.7x3.74x5.04inches Color:Blue/Green/Red/Yellow Voltage: 12-24V Default working mode: flashing No magnet at the bottom Dedicated for school bus note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.