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Adjusting power output on laser module

outsider

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Nov 11, 2011
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What's the recommended method of adjusting the power on the typical 3v laser modules (12x30 or 6x10).

I want to set it up so that I have full power or 1/2 power controlled by a switch.
Is it easy to hack the modules? Is it as simple as a resistor change?
 

Gadget

Active member
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Dec 28, 2013
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326
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43
Should be as simple as adding a 3-position switch with a resistor on one of the positions to half the power.

-G
 

outsider

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Nov 11, 2011
Messages
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I don't think it's quite as easy as lowering the voltage (by sticking a resistor in series, is it?
It's the current that needs to be varied to dim an LED, or am I incorrect?
 




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