Automatic Sensor: Auto-on within 10 feet, auto-off after 12-17 seconds of no motion detected helps prolong battery life. It will turn on only when it is dark and when motion is detected.10 LED & Super-Bright: With 10 LED in each light, AMIR motion sensor lights provides enough light to make sure you never stumble in the dark. Fantastic energy saving and environmentally friendly ensure an extra long life for your light.Simple Installation: An adhesive strip with magnetic fields is easily attached to and detachable from the lamp body. No tools, screws or nuts are required.10 pcs bright warm white LED, energy-saving and environment friendly.Battery Operated: This AMIR Motion Sensor LED Light is Powered by 4PCS AAA batteries (not included). Amir smart sensor chip with passive infrared technology, reliable performance and high sensitivity, accurately detect your movement.Note: This light can only be turned on in darkness environment. And the light of one may cause the other, so please DO NOT install 2 lights too close, otherwise, they will DOES NOT WORK! And Please DO NOT install this light in high temperature place, otherwise, high temperatures will affect the adhesive strip, and then the light will slide easily!!