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Some pieces from the bind ....

Step 1: Building...

You need:

1 led cob 5w (led cms/d !! this type have very white light) 18 volt

1 on off switch

2 battery 9volt

1 little radiator aluminium from pc

some wires,soldering materials,other for build your project like you want....

soldering two wires on led and join batteries in serial(9+9=18 volt),add the switch and fix the led on the base of radiator(dont worry,you can touch the led....the surfaces is low temperature),build a lamp how you want....

this project is for everywhere,every want,you only need to add some fantasy....

thank you to watch...good luck,oups good light......

<p>9V batteries? Really?</p>
<p>yes....! why...?</p>
<p>The LED will finish off the batteries in no time... 9V batteries have a pretty low capacity.</p><p>18650 batteries or 12V Lithium-Ion batteries could be way better (Check them on eBay, They're really cheap)</p>
<p>sure!! depending of usage ......(https://en.wikipedia.org/wiki/Nine-volt_battery).</p><p>in my case,have light for one hour....(maybe is battery at 300 mAh...)</p><p>this led need 275 mAh......We can build a battery pack with others battery keeping in mind the type of usage you needed...!! emergency lamp(short time)</p><p>exploring lamp or diving lamp(long time)....</p>

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