Product material:Metal(Aluminum)+Electronic components Colors:black Bright degree:range 300M Bulb's lifetime:100，000hours Voltage:4.5V (3X1.5V) Battery:3XAAA or 18650(without battery for the transport) On-off Style:touch-tone Mode: 3 Mode(High， Low， Strobe) packing: 1*flashlight(without battery)