Please use AA battery with voltage 1.2v try this flashlight.<br /><br />Specification:<br /><br /> <br />  <br />   <br />    <br />     Product name: <br />   <br />   <br />    Meco XPE-Q5 LED Flashlight<br />  <br />  <br />   <br />    <br />     Emitter Brand\/Type:<br />   <br />   <br />    Q5 LED<br />  <br />  <br />   <br />    <br />     Color BIN:<br />   <br />   <br />    white<br />  <br />  <br />   <br />    <br />     Material:<br />   <br />   <br />    Aluminum Alloy<br />  <br />  <br />   <br />    <br />     Max Output:<br />   <br />   <br />    600 lm<br />  <br />  <br />   <br />    <br />     Maximum Range:<br />   <br />   <br />    About 100meter<br />  <br />  <br />   <br />    <br />     Power:<br />   <br />   <br />    7W<br />  <br />  <br />   <br />    <br />     Lens:<br />   <br />   <br />    Convex Lens<br />  <br />  <br />   <br />    Zoomable:<br />   <br />    yes<br />  <br />  <br />   <br />    <br />     Battery Configurations:   <br />   <br />   <br />    1.2v AA\/14500 battery ( not include battery )<br />  <br />  <br />   <br />    <br />     Switch Type:<br />   <br />   <br />    clicky(on\/off)<br />  <br />  <br />   <br />    Mode:<br />   <br />    On-OFF<br />  <br />  <br />   <br />    <br />     Switch:<br />   <br />   <br />    Tail cap switch<br />  <br />  <br />   <br />    <br />     Color:<br />   <br />   <br />    Black\/Silver\/golden<br />  <br />  <br />   <br />    <br />     Weight:<br />   <br />   <br />    33g(net weight)<br />  <br />  <br />   <br />    <br />     Size:<br />   <br />   <br />    90 x 20 x 20 mm(L x Head Dia. x Body Dia.)<br />  <br /> <br /><br /><br /> <br /> Package Includes:<br /> 1 x Meco XPE-Q5 LED Flashlight