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Okay, now I understand. Thanks for your answer.
Hello, I have a very similar flashlight to this one, in working condition. After removing the cover, I measured the voltage, and it seemed 1-2 V~ comes from the generator/dynamo, and it is way too few for white leds to light up. Or not?
Let me ask, why didn't you used the original switch of the flaslight?
Easy Collapsible Worktable
DIY Arduino Battery Capacity Tester - V1.0
DIY Yellow Jacket Bottle Trap
Top 10 Vise Hacks!
I like the super easy construction!The fist image shows that you have tearout problems with the table saw. Is your blade sharp, and has enought teeth? More teeth needed for finer cut, especially in plywood.
Candle Jar Wax Removal
Here you can find a very good list of 18650 battery tests, including top brands, and cheap/fake ones too.250mAh seems unlikely low. I would repeat it, even with lower currents.
Chocolate Mug Cake - 2 minutes recipe
These huge magnets sould be kept far from any electronic device. The magnetic power comes with this size is more then 10x of what is in a drives internal magnet. It may be possible that it bended the head movement mechanism.
14+ Unusual Uses for Mouthwash
OPEN SOURCE AIR PURIFIER
Thanks, it bought up my memories from my childhood when I was making paper kites with my father.
TRIPLE YOUR SOLAR ARRAY'S OUTPUT!
Toilet Roll Dispenser
Hanging Cord Organizer - fast, simple, and cheap!
DIY spray paint
Natural Mood Enhancers
Shooting Hand held Panoramas
How to Make Any Shoe Waterproof!
3d scan anything using just a camera
Make A One Desk Electronics Lab (in a small place, for beginners)
DIY Life-Size Phone Controlled BB8 Droid
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