... to 150 hours for 3xAAA alkaline batteriesPush ON/OFF button Light bracket and seat post Named:5 white led's muti-funtion ... :3x AAA Packing:Blister card IC controlled 2 modes head light 2 Modes:flashing&steady Quick release bracketWelcom OEM and ODM ... shades, Also devoted to outdoors led light, such as camping lantern, bicycle led light, work light, book light ,flash light. All kinds of outdoor product ...