Yes, many motion sensor night lights are indeed battery-powered. These night lights use a built-in battery to power their sensors and LED light sources. The advantage of battery power is installation flexibility, allowing users to install these lights anywhere they want, regardless of the location of an electrical outlet.
The ValyTime brand motion sensor night light is an energy-saving LED light that is very suitable for home use. It is equipped with a 0-3 meter motion sensing range and a 100° wide-angle detection, which enables it to accurately sense any moving objects nearby.