Dot Line Cross 650nm 10mW Red Focusable Driver 3-5V Laser Diode Module 12x35mm

Focusable : Yes. 650nm 10mW Red Dot Line Cross Laser Module. Wavelength: 650nm Output power: 10mW. 1x 650nm 10mw Laser Diode Module. Red wire is connected to the positive pole "+‘’and black wire is connected to the negative "-".

eBay