... ,Shockproof,one hundred thousand hours of LED life,convenient for walking and guarding in the night,enginneering,camping and climbing, ... contains small parts. Keep it out of reach of children. Battery Installation: 1.Twist the light end cap off and insert(3 ... drawing.(see drawing) . PS:Lights can make the pictures as your request,such as logo of your company Anhui Linmin Illumination Tech. Co., Ltd.