How do I power this module?

• Apr 21, 2011

• #1

J

jellis1234

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150mW 532nm 3.7V-4.2V /Laser Diode Module/Green Laser | eBay
I bought this module and it has arrived today. The spring is the negative but I can't work out what is the positive.

I am powering this from a lab power supply atm so I can work everything out.
Thanks guys.

 

• Apr 22, 2011

• #2

Tech_Junkie

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Any part of the brass housing can be used for the positive.

 

• Apr 22, 2011

• #3

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laserponinin

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Tech_Junkie said:

Any part of the brass housing can be used for the positive.

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this answer is right. I do it form this advice,ggod luck.