URPOWER Motion Sensor Light Battery powered: Taking 3AAA batteries, saving your time on pulling and charging, which will be more convenient for household. Effective sensor: Using sophisticated, high quality sensors to ensure the efficient light turn on in the dark when there is motion detected. Easy to install: Using adhesive strip with magnetic fields, which will be easily attached to the wall, stairs or anywhere you want. No screws, nuts and tools are needed. Super-bright LED bulbs: High quality LED bulbs that can provide a good amount of light which is enough for you to see in the dark. Notes: 1. The light won't turn on if the light sensor has been detected by the enough light. 2. Never install the light near the place where is damp or with high temperature to ensure the sticky tape work well.