Snow Peak Hozuki Light is a automatic light sensor waterproof nightlight inspired by the shape of wind bells. Can reach up to 100 lumens. Especially designed to sychronize with the changes of the wind and sound of the environment around you, to let you enjoy the most of being surrounded by nature. The lights would be slowly weaken for you to have a good night of sleep. Three AA batteries can light up to up for 100 hours, USB power supply option available. Length of the lanyard can be adjusted. Suitable for both indoors and outdoors.