1mW POWERFUL GREEN LASER LAZER POINTER PEN HIGH POWER PROFESSIONAL UK £0.99 thenationalherald.com
520nm 1mw 5mw Dot Green laser module high Stable 6MM size
633nm 1mw Red Dot laser module Special specifications 10×30mm
Amazon.com: Quarton Red Dot Laser Module CLM-635-12 LPT (Concentricity Laser Module, Precision Laser Module), Class II Laser, less than 1mW : Industrial & Scientific