Weight: 206g/7.21oz Material: Aviation aluminumGlass: Toughened glass antireflection lensesLight Cup: 6061 electroplating reflectors Power Supply: Two 18650 batteryBulb Model: CREE XM-L T6 Luminance: 3000LMFeatures:1. Adjustable light， including bright light， weak light， flash light and great flash.2. Suitable for many places， such as riding， hiking， climbing， fishing， camping and so on.3. Well-distributed light， high temperature resistance， and high brightness.4. Extensive Lifetime of LED (10，000 hours).5. It is the top-level equipment for biking player who must buy it. Package: 1 * CREE XM-L 3T6Strong bright light