Wireless! Just stick onto your car door easily! 

Automatically senses then lights up and then off when the car door opens and closes, which is a warning for traffic and pedestrians.

Waterproof design, new magnetoresistance effect, when the magnet and the warning light are at a certain distance, the light  automatically turns off, and when separated it  automatically turns on.

Features:

• Improve Passerby Visibility: When opening the car door, the red warning light flashes rapidly, reminding vehicles or pedestrians that the car door is opening this avoids collisions or accidents. Fits any car, SUV, truck.
• Wireless Design: This car door crash light uses wireless design, no need to cut or destroy the original car wires, just stick them on the door with 3M adhesive. Does not affect the door opening, closing.
• Intelligent Induction Design: The universal strobe warning light, built-in magnetic sensor, it will start flashing once the car door is opened, close the door the light will turn off automatically. High sensitivity and good stability.
• Waterproof Design: Come with a waterproof rubber ring inside to better protect the main control board. It can be used even on rainy days.
• Long Battery Life: Safety warning light use 3V button battery, at normal operating condition, battery life expectancy is 50,000 hours.

Specifications:

For Vehicle Brands/Model: Universal
Size: approx. 28mm x 9mm - 1in x 1/2in
Material: ABS & Metal
LED Quantity: 5 LED
Placement on Vehicle: Front, Rear, Left, Right
Power: 3V Button Battery

Package Includes:

• 2 x Car Door LED Warning Light
• 2 x 3V Button Battery
• 4 x 3M adhesives