LASER TREE Laser Engraver Module, 4000mW Optical Power, Laser Engraving Cutting Module, Adjustable Focal, 450nm Laser Head for Laser Engraver Cutter Machine DIY Wood Paper Leather, Class 4

This performs exceptionally well! The four tapped holes on the back make mounting super convenient. My Genmitsu CNC mount wouldn't fit the laser, so I just drilled two diagonal holes in the carriage of my machine to meet the holes on the laser module. While the wiring wasn’t arranged correctly for my machine, it was an easy fix using tweezers to adjust the JST connection.After approximately 20 hours of use, I haven’t encountered a single issue. This is a reliable and well-designed laser module for engraving and cutting projects!

Fired right up, better than expected for the money, i bought this to attach to my cnc machine, easy to adapt on my build

One thing people should know is that if your just buying it to have a powerful laser to play with it doesn't focus the beam in a way that will stay culminated (did I kill that poor word). Thats to say it won't make a tight beam it will only focus a point within about a foot of the laser and then it widens so you'll need another lens to get a beam out of it. But if your using it the way its intended it should work great.

Easy installation, simple to connect. I have an old FoxAlien laser that the module gave up. I ordered this module as a replacement. It was a simple matter, four Allen screws and one cable. Just unplug the old one, remove the screws holding the old module, unplug the cable st the top of the module. Then use the four screws to mount this module, plug in the cable and you are back in business!

I had this sitting around for a few months and finally got around to hooking it up a few weeks ago. Initially it worked great, no issues with engraving at all, was very impressed with it.But after using it intermittently for about 2 weeks, the laser no longer fires. I can hear the fan running so the unit is getting power, but cannot get any output from the laser any longerUPDATE: LASERTREE contacted me shortly after this review and sent a new control board, which sadly did not solve the problem. However I notified them of this and they happily sent a new module, which does indeed work great again.Bumping the review back up for the excellent customer service

I bought this because my 10w laser was having trouble engraving some harder metals. Good news is, my machine was able to fire the laser no problem. The bad news is, it performed WORSE than my 10 watt. Makes no sense to me. Also the laser had to sit VERY high in order to get any kind of focus in the beam.

This little powerhouse gives you that extra kick needed, with a pwm module it is very tunable, has an awesomely tight focal point, and even at 100% power stays relatively cool and the forward air flow through the heatsink/body pushes smoke away quite easily, for less than $60 I doubt you're going to find better, at least in a DPSS laser module.I've wandered between 5mw up to 50000mw over 40 years of laser experience, and an important thing to know is that the laser, although I have not officially tested it, is kicking out the 4, 000mw it claims, and might even be a little closer to 5 or6,000mw, it's power output from my experience tells me you're getting exactly what they advertise, and perhaps a bit more.I consider it an excellent purchase, but with one caveat, this needs to be run with a pwm module, if not, you can wire it directly to your power supply,(Whether that be a 12 volt plug in adapter or a regulated power supply) no harm will come to the laser from this type of hookup. This is perfect for the laser enthusiast who does not intend to engrave with it and wants to hook it up directly to a 12 volt DC power source, I suggest using one that is rated at 3 amps or better.One final thought, if you wish to connect it directly to a DC power supply you must also connect the pwm module lead, (yellow) to the positive, (red) lead to get it to function, just remember if you do this it runs at 100% power all the time, but won't hurt the module.To simplify, you will have to cut off the connector of your power supply, and one end of the three lead red-black-yellow connector cable and solder those two together cables together, so basically you have a black to black connection, a red to Red connection, with the yellow lead also connected to the red to red connection. Simply plug in the connector to the laser module, then plug in the adapter, I suggest using shrink tubing on all solder connections. Watch out though, at 100% power even if highly unfocused at 3 to 5 ft will cause painful burning on your skin within seconds.

Works as a drop in replacement for my Ortur Laser Master 2 (12v power) diode (4w) that failed. Installation was easy and this unit is much cheaper than replacements that are sold by Ortur.