Open cars doors can constitute a hazard to other road users, especially so on dark, cloudy nights. You can now warn oncoming drivers, bikers, and pedestrians of an impending collision with your car doors by using this innovative LED warning light. After you install this nifty tool to the inside of your door, it will flash automatically when your door is open and serve as a warning signal for other road users. And you can setup the device in a few seconds with a simple plug-and-play installation.
1. Wipe the mounting positions on the open door and the opposite end with a towel
2. Remove the adhesive cover for the door part of the device and attach to the door.
3. Repeat the same process for the opposite end (make sure that they both align)