4 Selectable Programs 3 modes High / Strobe / Low 178 Lumens Removable pocket clip 1 AA Battery (included) Get a grip on LED performance. Pelican's 2350 LED Flashlight emits up to 178 lumens of concentrated light. Powered by one AA alkaline battery, it's one of the brightest flashlights in its class. At only 4.23'', you'll always want the Pelican 2350 LED Flashlight in your pocket. Its small size does not reflect it performance or features. The 2350 provides three modes, High / Strobe / Low. Additionally, it is programmable allowing the end user to select from four different programs.