Use 14500 battery or 1 AA copper circuit, stainless steel, demagehead design, high ... three stalls were: 100%, 30%, 5%14,500 with a battery life time is 30 minutes highlighted, in the light 90 ... minutes of low light4, Battery: use a 5 cell (AA batteries) or 14 500 lithium battery, Universal Ni-MH and lithium ion rechargeable battery;5, Material: shell ...