This probably isn't news to most of the people here, but I find this retail Joule Thief so convenient and effective that I carry it in my pocket at all times, and you have to be something special to get a dedicated space in my pocket.
I'm not advertising any particular brand, just posting public notice that this design is available and effective. It is bright enough to see small hazards where you are walking at night or to look inside a computer case to find the screws. I can't tell how long the AA battery lasts because I have not used one up in 4 months, and that's about being my first line of defense against dark spaces up to about 15 feet away.
Pleas don't laugh at me. Some people might find this informative.
I'm not advertising any particular brand, just posting public notice that this design is available and effective. It is bright enough to see small hazards where you are walking at night or to look inside a computer case to find the screws. I can't tell how long the AA battery lasts because I have not used one up in 4 months, and that's about being my first line of defense against dark spaces up to about 15 feet away.
Pleas don't laugh at me. Some people might find this informative.
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