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To make this flashlight you will need a soldering iron, solder, a 3v battery and a LED.

Step 1: Step One

conect the LED find out wich way it waorks then solder one end to the battery like shown

Step 2: Step 2 Done

your done pinch it to turn it on you may have to bend it around a bit pretty self explanatory though 
I'm not trying to be mean, but I can't see practicality in this as a flashlight. There is no switch to turn it on/off, no ability to replace the battery, and although it's possible to solder directly onto a battery's +/- terminals, it seems inherently dangerous.
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