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Film Canister LED Flashlight

Step 4Soldering

Soldering
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Cut out 8 pieces of wire(like in picture 1) and strip the insulation on the ends.

The LEDs are connected in parallel, that means that all the negative (shorter) sides are connected together and all the positive (longer) sides are connected together.
Take the wire and solder it on the LEDs. One by one connect two same sides (longer whit longer shorter whit shorter) whit wires and solder them.(picture 2,3,4 and 5)

Don't cut all the end of the LEDs, leave two, one positive (long) and one negative (short) (picture 6)

Test it. Take the 3V coin cell battery and put it on the leads in correct manner. If all is good so far the LEDs should lite up.(picture 7 and 8)

On one lead of the LED solder a longer wire. Strip a bit more of the insulation on the oposite side and bend ti. (picture 9 and 10)
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6 comments
Jun 4, 2011. 1:35 PMheretolearn98 says:
what do you mean that all negative (shorter) sides are connected, and positive (longer) sides are connected? you mean i trim the LED ends a certain way?
Apr 21, 2008. 2:04 PMtech-king says:
good ible. i like it BTW: did you ever build that spark generator?
Apr 21, 2008. 2:10 PMtech-king says:
good luck then
Feb 13, 2009. 10:18 AME-R-IC says:
look way right and scrool up
Feb 14, 2009. 10:14 AME-R-IC says:
no not here. on the previouse comment page. you will not believe how far the replies went
Apr 6, 2009. 2:52 PMpyro man says:
well well just have to fix that wont we?
Mar 29, 2009. 1:15 PMpyro man says:
nice job.very simple for beginners,yet it provides a reason for the more expierienced workers to build one themselves

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stanislav.drca@yahoo.co.uk stanislav.drca@gmail.com ______________________ One of my favorite inventors, and one of the most brilinat minds that ever walked the Earth is Nikola Tesla. Here are some T...
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