I initially used the Dorcy 180 lumen LED flashlight to inspect my brake pads and was rather disappointed since it didn't do a great job lighting up what I needed to be lighted. Perhaps my expectations were too high for a 25 dollar flashlight which I expected to provide a magical beam of light able to illuminate all that lay within its path. I digress... later in the week I compared it to a 8 dollar Home Depot flashlight to see its power relative to one of its competitors. It was at this time that I realize that I was not ready for something -- the true power of the Dorcy flashlight! This thing just screamed lumens as it able to light up the entire fronts of my neighbor's homes across the street. If you don't have a flashlight for those emergencies, buy this now. It also runs on 4 AA batteries.