Sign up for
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
Flashlights shell use a large number of materials. We designed a battery that can replace the shell.
Co-Battery can link each other end to end. It can be screwed into a lamp directly and became a flashlight. Firstly, remove the lamp cap. Then screw the batteries into the lamp and hold the cap to the bottom. After that, you can use the light. Of course Co-Battery can also be used as ordinary battery.
Co-Battery saves materials of the flashlights shell. Its easy to take and replace. Modularized parts make it convenient to assemble.
Sisi Yuan Yiwu Qiu Shiyi Shao Zhening Luo