Specification: Sensitive angle: 60 degrees. Installation: Use double-sided tape (with) or use M3.0X20 mm screws (not included). Standby current: <0.1mA. Working temperature: -5 to 38 degree Celsius. Power: one fifth battery (AA). Sensor Control: photosensitive sensors (night work, day standby). Size: 8 x 4 x 3 cm/ 3.14 x 1.57 x 1.18 inch(L x W x H). Working Humidity: 5% -93%. Usage: placed on the door, kitchen, safe case, wardrobe, drawers, car glove box, etc for infrared sensor lighting. Power: 1.5V. Sensitive distance: 3 m/ 118 inch. Light source: 4 x LED. Delay time: 6-8 seconds. Please note that the battery needs to be purchased by yourself. Sensing modes: human infrared sensor. 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, the light 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. 100% Brand new and high quality Material: Plastic. 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. Note: LED lights should not directly target people's eyes, especially children. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Because of this type of product that uses an infrared sensor, it requires a relatively stable environment. Use a good quality LR06 (AA) No. 5 battery or rechargeable battery. Please pay attention to the temperature and humidity of the working environment, otherwise the battery life will be affected. Please keep the lamp away from the monitor and TV. Do not place the product in a position facing the glass door or where the temperature changes drastically. 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. Please allow 1-5mm errors due to manual measurement. After the light goes out, a delay of 6-8 seconds, then work again.