Techinical Specification: Material: aviation high-quality aluminum alloy of 6061-T6 standard Surface: precise process of CNC, disposal of thick anode oxidation Size/length: 318mm diameter of body/46mmdiameter of head:75mm Bulb: 24W HID Weight: 208Gg(without batteries) Brightness: 1200 lumen Illumination time: more than 60 hours Lens material: external tempered glass lens Batteries: high capacity lithiumion battery