1x 445nm 447nm 450nm 1w 1.4w 1.6w Laser Diode Driver 3.7V 9x20mm. A Driver Circuit board for 445-450nm 1W 1.4W 1.6W Laser Diode. This is a driver for 445-450nm 1W 1.4W 1.6W laser diodes! Widely industrial and LAB use!
eBay