Product description: Lumens:22000lumens White LED Color Temperature: 6500K Switch Function: bright to low light Beam Angle: 8o degrees Reflector: Smooth aluminum reflector cup after ultra-high temperature processing, laminated alloy reflective film. Material: Aluminum Surface treatment: Army regulations three hard oxidation. Colour: Black. Battery: Use 2 * 18650 Lithium Battery Operating voltage: 9V to -14V. Waterproof: 100-220 meter diving. Dimensions (mm): 200 * 50 * 28 Weight (g): 270