A keychain-size flashlight with big-light power the blue 37-lumen Mag Lite Solitaire LED flashlight. It features the classic look of the company's original Solitaire flashlight introduced in 1988. And it works in the same simple way just twist the head to turn on, turn off and focus spot to flood. But thanks to a new, state-of-the-art LED light engine, you get something you just wouldn't expect to see coming out of a flashlight so small a blast of power that can light up an object at the far end of the parking lot 61 meters distant! the flashlight comes with one AAA battery (which should run the battery for about 1.5 hours) and a key lead.