Green Dot 532nm 20mW Laser Diode Module 3-5V Brass w/ Driver Cable

532nm 20mw Green Dot Laser Diode Module w/ Driver. Output Power: 20mW. 1x Brass 532nm 20mw Dot Laser Module. Wavelength: 532nm. Red wire is connected to the positive pole "+‘’and black wire is connected to the negative "-".

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