The Mag-Lite ML125 flashlight combines long-famous Mag-Lite beauty, reliability and beam-adjustability with powerful new electronics, providing stunning brightness, long battery life and an array of User Configurable Function Sets. Use the flashlight just as it comes out of the package or Personalize it to suit your own habits of use by choosing one of the other Function Sets in the chart shown below. Designed for optimum light output, the new Maglite ML125 LED flashlight delivers performance oriented features in a sleeker compact design. This advanced lighting instrument is driven by next-generation Mag-LED Technology. Now with more features...amazingly bright and engineered for long battery life. Personalize for Quick Access to your Preferred Funtions Full Power Power Save (25%) Strobe (12/sec) SOS (Int'l Morse Code) Momentary On/Off Runs on either an environmentally friendly NiMH Rechargeable Battery Pack OR (3) C-Cell Alkaline Batteries.