It’s always good to have a torch on hand for emergencies. Unfortunately, sometimes these torches can be forgotten, and wind up with dead batteries when you need them most. For those cases, this build ...

Here is a tried and tested design of an ultra-simple emergency torch built around the inexpensive dc-dc converter chip MC34063. Beyond a handful of simple components, a lithium coin cell and a small ...

Light up the night with this incredibly efficient and cheap DIY fire torch. Perfect for camping, emergencies, or your backyard. This design burns brighter and longer than any store-bought option.