This is a powerful little light that features an anti-roll system, Xenon lamp assembly and 65 real lumens of intense white light to blast a big hole into the darkness. Unlike other lights of its kind, its beam signature is perfectly pre-focused, leaving no shadows or ugly artifacts that many focusable lights in the world today can experience.Wt: 4.23 oz. / 120... More gramsLength: 5.12 / 130 mmOutput: Xenon - 65 Lumens / LED - 9 LumensMax. Diameter: 1.34 / 34 mmBattery Type: CR123A x 2Run Time: Xenon - 1 hour / LED 50 hoursBulb Type: Xenon 6-volt / 3 1-watt LEDs