Auto-sensing LED door lock light use the human body infrared sensor technology and light automatic detection technology. When there is a hand close to the door lock, installed in the lock above the LED lights automatically illuminate. People come, thelight has been bright, people go,the lights automatically extinguished. Make it easy and safe to enter your home. In the dark do not have to grope in front of your door.Material: Plastic.Sensing modes: human infrared sensor.Sensor Control: photosensitive sensors (night work, day standby).Usage: placed on the door, kitchen, safe case, wardrobe, drawers, car glove box, etc for infrared sensor lighting. Please note that the battery needs to be purchased by yourself.Troubleshooting:1. When the power is turned on, the light does not light. Solution: A. Check the polarity of the battery installation. B. When the ambient light is too bright, the lamp is in standby mode. C, the battery is not charged, please replace the battery.2. When the power is turned on, the LED light flashes. Solution: A, the host needs one to two minutes to stabilize the internal circuit, B, the battery may be low, please replace the battery.Do not place the product in a position facing the glass door or where the temperature changes drastically.Because of this type of product that uses an infrared sensor, it requires a relatively stable environment.Please keep the lamp away from the monitor and TV.Please pay attention to the temperature and humidity of the working environment, otherwise the battery life will be affected.LED lights should not directly target people's eyes, especially children.When installing the product, do not install it in a place that is easy for children to avoid, so as to avoid accidents for children.Delivery Quantity: 1pcPackage Contents: Only the above package contents, excluding other products. Batteries are not provided.Size: 8.1*4.6*3cm(Reminder: The size is measured manually, please allow 1-2 cm measurement error)Color: silver(Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)