LMJ-CN&reg; 3 Modes 1000lm Adjustable Zooming xm-l T6 LED Flashlight (Black) U.S. imports XML-T6 LED Bulb , Max output 1000lm is rated by manufacturer. Stretching can produce very bright and soft light. Power Support: 1x 18650 3.7v battery (NOT included). No AA battery holder,Only compatible with 18650 battery