This LED light mounts on the rear window of your car and shows drivers behind you various signs and symbols. With three adjustable modes, it allows you to easily switch between different light effects. With the included remote control, you can select the desired symbol, such as "thank you" or "excuse me". Well, the bright 1200K light will provide excellent visibility of your "messages" to other motorists. It's a great accessory to help drivers behind you understand your intentions. Make it easier to communicate on the road with the Hand Gesture Light! This is a great gift for any motorist.