Feature and Function of the product: 1. Sensitive Motion Sensor – Technology sensitively captures human activities and light up lasting 25 seconds and then shut off. The LED light will keep off if the environment light enough, it can help save up huge amount of battery. Please place the LED light to dark place. 2. Rechargeable Design – 3500mAh durable and lasting battery inside. Never need to exchange or replace battery to free your own mind. Properly switch to right model suitable to save up amount for battery. 3. Various Models – 1. Always ON Mode: keep the LED Light always light up, durable last 6-8 Hours. In Always ON Mode, you can always adjust the brightness level by using the button on the side; 2. Motion Sensor Mode: only light up while induction chip capture human activities in darkness, and light up lasting 25 seconds. 4. Magnetic Contact – Directly attach onto metal surface or using adhesive tape (including with order) to place the LED Light to where you need.