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Need Help! on my 20mW green laser module.

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ParangSalawaku

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Oct 24, 2010
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Hi there,

I recently bought an 20mW green laser module.
My problem is how do I power this thing I know it uses batteries but which one?
the specifications are:
20mW
532nm
250mA

And one last thing ho do I connect the power source.
my first time trying this out.

thanks.
 





RA_pierce

RA_pierce

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Sep 16, 2007
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Can you tell us more about the module?
Where did you buy it?
Does it include a driver?
If so, what is the voltage requirement?
 
Toke

Toke

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Jul 25, 2010
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The review on DX say that the wires are blue and red, with the blue being the +.

It might be true for yours as well, you could get a battery holder for two batteries?
Or just use some tape?

You could also start reading up on how to build a laser, there is plenty of material on this site. Just be careful, it can be an expensive hobby. :D
 
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warrior24769

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Apr 10, 2011
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Is there a way to operate it, like say in a spirograph, with it wired up to a switch on the outside?


Like if you didn't want to use that little button on it, if you were mounting it within a spirograph.
 
Toke

Toke

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Yes, but you will have to solder a bit of wire across the connections on the button.

(or maybe improvise something with a bit of eraser and tape to hold the button down. :D)
 
Toke

Toke

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It is possible, but it would be much easier to short it where it connects to the print.
 
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