Just thought I would put this out there
Sure it aint 1000 lumen, or need Li Ion, this one NEVER needs batteries and with over 100K charges or more from a supercapacitor…
Video of how to build (it’s pretty long)
3D files, rest of the BOM is in the first link
http://laserhacker.com/3DParts/TeslaTorch3DParts.zip