Creative lamp Four-Leaf Clover Design Infrared Human Body LED PIR Sensor Light light-activated Intelligent Motion Sensor LED night light Good water-resistant for all weather usage outside; the concealed wall-mounting design contributes to convenient installation and fashionable appearance. Induction maximum distance is 3-5meters, high sensitivity;if you go beyond the scope, it will automatically turns off after 20 seconds. Sensor lights controlled by a light sensing technology, the function only starts automatically in the dark, if the ambient is bright, it will automatic turn off. No battery needed, can be recharged by USB cable(included). LED light source is completely green, no pollution and energy-saving.