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Focusable Violet Blue Laser Diode Dot Module 405nm 200mW Dot Lasers 12V with TTL and Heatsink Fan Cooling Long Time Working: Amazon.com: Industrial & Scientific
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35 Pack 1N5349B 5W 12V Power Zener Diodes 1N5349 5 Watt 12 Volt Axial Diodes T-18 by Howrin : Industrial & Scientific - Amazon.com
12V Green Diode Lasers 532nm Laser Module Dot with TTL 0-30KHZ & Fan Cooling - Long Time Working: Amazon.com: Industrial & Scientific