What is the battery life of the nightlight/flashlight? Jamie Edwards January 31, 2023 04:13 Updated The unit is designed to operate for 3 hours. Related articles Is it okay to leave the nightlight/flashlight plugged in all the time? What is the color temperature for the nightlight? How does the motion sensor work? My junction box does not have a ground wire, what should I do? Comments 0 comments Article is closed for comments.