Size:19*3cm,Battery NOT Include. Automatic Induction:When people enter the induction within the range of 3 meter (10 ft / 120 )it will on,when people leave;it will light off 15 seconds delay. It will turn on only when it is dark and when people motion is detected. New High-efficiency White LED Technology:High efficiency, energy saving, long life, energy saving, environmental protection, explosion proof, cold luminescence.10 LED lights that shine brightly so you don't stumble in the dark. Simple Installation And Wide Range Of Use:This motion sensor light is fixed with magnetic strip on one side and 3M tape on the other. No tools or screws are needed.Stick-on anywhere conveniently.Applicable to bedroom, baby room, wardrobe, corridor, basement, garage, stairs, warehouse, roof, door and garage entrance and other places. Easy Power Supply:This motion sensor night light is powered by 4PCS AAA batteries (not included).Saving installation and charging time,battery can operation with long service time. .If you have any questions about your purchase, please feel free to contact us.