405nm 500mW Blue Laser Module With TTL/PWM Control Focusing Tub For Laser DIY | eBay
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Focusable 500mw 808nm Infrared IR Laser Diode Dot Module 12V + TTL + Fan Cooling
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500mW 405nm (Bluray) Focusing Laser Module 12V with Separate TTL (PWM) Driver - OdicForce