650nm 5mw Adjusted Red Lasers Diode Dot Line Cross Laser Module Heatsink & Driver in

used these to lign up stock and rapid zero x,y on my cnc

Never would power on. It would cost me more than the refund to take to a drop store,or schedule a pickup.Lesson learned.

When changing the lenses be aware that there is a spring that is used to put tension on the lens to hold the focus. The spring will easily fall out and get lost if you're not careful. Without the spring, there is little friction to hole the focus, the lens turns very freely. Even with the spring it does not take much effort to change the focus and I could imagine that any sort of vibration would change the focus over time. So use of thread lock may be in order depending upon your application.

Use the lenses and heatsink as parts to make your own different wavelength and power system with anu TO-18 device.

the crosshair lens was missing. Not much help finding a center.

Cheaper to buy this than just the prisms, so the laser was a bonus. Perhaps I'll use the laser for an optics testing interferometer at some point.

Laser is barely visible, you would have to use it in the dark which defeats the purpose. Tried exact, under and over required voltage level with no change. So cheap, not worth the effort to return. Look elsewhere for a better product.

basic laser module with line, cross, and point filters and mounting block

Tal como se describe

falta el disipador de calor..

Han llegado sin los 2 disipadores de calor negros y la lente de línea, que aparecen en las fotografías y contenido el paquete, en el anuncio 🤨😠👎🏼