Product Details: Car Millimeter Wave Radar Prompt Light Blind Zone Lane Change Auxiliary Warning Light BSD Alarm Safe Driving Alarm Accessories. Material: Plastic. Style: 25MM Round Light, 14MM Round Light, Blind Zone Lens Light. Power Supply Voltage: 12V. Power: 0.2W. Features: Car Safe Driving Alarm Accessories refer to auxiliary equipment installed on the car to enhance the safety of the driver, prevent accidents or reduce losses when accidents occur. Installation Location: Usually installed on the A-pillar. Size options are 25mm and 14mm lights, depending on the configuration of the vehicle. If compatible, it can also be installed in the rearview mirror lens. Light Behavior: Level 1 Alarm: When a target is detected in the vehicle's blind spot, the light remains on. Level 2 Alarm: The light flashes and the buzzer sounds when there is an immediate threat, such as when the driver is preparing to turn or change lanes and there is a vehicle in the blind spot. Product Includes: 1* Car Alarm Accessories.