This item selects Aluminum of good quality as its internalwirings. The LED adopts advanced technology of CREE. The lamp life reach almost 100，000 hours. It's waterproof and special in design. All features make it a necessary tool for family， field ，tour and so on.FeatureEasy to be used.High Intensity Ultra Bright 5 Watt of 300 LumensZoom function that allow the beam can be focusedWater-Resistant， you don't need to worry about water or rainExtensive Lifetime of CREE LED (100，000 hours)Adjustable base is provided for each head lamp， with back and forth inclinationThree modes: Brightest， Bright And FlashingThree levels of output:First push into the high light output of production;the second push into the low light output capacity;third push produce flash，can be a warning.DescriptionColor: Black with bright red logosMaterial: Plastics and elastic bandBattery Power: 3¡ÁAAA 1.5V Battery (Not included)6 Mode: Strong Brightness / Normal Brightness / Flashing / zoom in / zoom out /OffZoom Range:x1x250x500x1000x2000Size: 25mm (D) x 60mm (L)Package Include:1 x CREE LED Head Lamp ( Battery Not Included )