Economical Green Dot Laser Module, 520nm, Class 2, Less Than 1mW, with APC Driver, 7~10V Operation Voltage, D7x21mm, VLM-520-03 LPT, Laser Head, Made in Taiwan

I powered this with the PWM GPIO 3.3v signal on my raspberry pi. The PWM allows me to adjust the brightness in software

This laser LED is surprisingly bright, considering the low power consumption. Very pleased.

While it works fine, it does not display a dot it’s a really short line. Functions fine for what I need but not what I was expecting.

Good little light. We put it on wife’s quilting machine works great she’s happy with it. Fast and quick delivery thanks

I replaced a burned-out laser guide in my chop saw (Porter Cable/Delta 3802L). Fairly easy replacement. This laser is bright and focused. The saw's power supply worked great - very little messing around with wiring was required. The original laser ($105 to replace !!) gave a line, this replacement laser is only a point of light, but it falls exactly where you need it - where you want to cut.

Line not a dot...Didn't last 2 months. Wires broke. Garbage

This 7mm Dia laser module of very small and well manufactured. It is sold as a dot beam shape. It is actually a short Ellipse. The smallest diameter laser with a round beam from this vendor is 10mm Dia (VLM-435-60).

So far it's working great! I'm not a trained engineer, but I simply took an old USB cable, cut off one end and attached the matching colored wires (for power) to the lasers wires and it's working just dandy. I used USB to keep it as close to the power level that is recommended for this, which I understand is 5volt max (from the Q and A section of the product page).