Locator Line 532nm 20mW Green Laser Diode Module 5V Brass + Heatsink Cooling
532nm 20mw Green Focus Line Laser Module + Heatsink. Output Power: 20mW. 1x 532nm 20mW Laser Line Diode Module. Wavelength: 532nm. 1x Heatsink. Red wire is connected to the positive pole "+‘’and black wire is connected to the negative "-".