I decided to do this project because I wanted a small but vary bright flashlight, so that I could use to use up all the old smoke detector 9V batterys. I change them every New year so I have a good supply of half dead batterys. This is what I came up with 3 white LEDs a chunk of pc board and a top to a 9V battery and some hot glue and some solder.





When Your Homestead Owns You with Kerry Brown – Epi-3826
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Today Expert Council member Kerry Brown joins us to discuss what it really
means to build systems that actually support your life instead of quietly
draini...
9 hours ago