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How to build a 1,024,000 mcd portable light

Step 11Remove cardboard and toothpicks, and allow the resin to set.

Remove cardboard and toothpicks, and allow the resin to set.
Wait until the resin has hardend just a little bit, and remove the toothpicks and cardboard.

Next, wait until your resin is completely set before moving the light to another surface.
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3 comments
Jun 19, 2008. 1:29 PMacmefixer says:
I see now that all of the LEDs are connected in parallel withOUT separate current limiting resistors. The bad thing about this is that each string of LEDs has a different vorward voltage, and the one string with the lowest forward voltage will hog the current and overheat, and prematurely fail. But then I guess that really doesn't matter if these are cheap hong kong LEDs, because they will all be dim and worthless in just a few hundred hours anyway.
Jun 19, 2008. 7:11 AMacmefixer says:
I see now that all of the LEDs are connected in parallel withOUT separate current limiting resistors. The bad thing about this is that each string of LEDs has a different vorward voltage, and the one string with the lowest forward voltage will hog the current and overheat, and prematurely fail. But then I guess that really doesn't matter if these are cheap hong kong LEDs, because they will all be dim and worthless in just a few hundred hours anyway.
Jun 18, 2008. 6:00 PMacmefixer says:
I see now that all of the LEDs are connected in parallel withOUT separate current limiting resistors. The bad thing about this is that each string of LEDs has a different vorward voltage, and the one string with the lowest forward voltage will hog the current and overheat, and prematurely fail. But then I guess that really doesn't matter if these are cheap hong kong LEDs, because they will all be dim and worthless in just a few hundred hours anyway.

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Author:yeti
I'm a computer guy living in a computer world. I dream of making every object I touch daily myself. That's all.