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12*34mm 532nm Green Laser 5mw-10mw Line And Cross Shape Module Diode Lazer Apc Circuit 3.0-3.7vdc Many Angels For Option - Stage Lighting Effect - AliExpress
5mW Green (520nm) Adjustable Focus Direct Diode Laser Module Dot Pattern (12mm, 3-5V) - OdicForce
Amazon.com: Green Laser Module Diode Green Laser Beam Light 532nm (5mw Green Dot) : Industrial & Scientific