I’ve had no problems ordering from AliExpress. Shipping can be a bit tardy - but for the price, worth the wait. Just make sure that you have the proper laser module for your particular brand of laser. From what I understand, all laser modules are specific to a machine/brand due to wiring and connections - but I’m not 100% positive on that.
I’ve been burnt multiple times with Aliexpress. Last time I tried it I used a credit card and the credit card company returned my money… they wouldn’t even answer me… You can understand my hesitance.
It’s input is 80W with an 11W output… these are generally input wattage whereas the co2 are output wattage.
I’ve got a couple $80 lasers from Amazon, one is stock, the other has a NEJE 40630 laser module on it… Connections are simple, but the connector might have to have it’s pins swapped around. I also ran a larger power wire, since it’s draws more current than the original.
It mounted different, so you might have to do some mechanical work.
If you have questions… ask…
Good luck
Thanks for the reply Jack… I usually deal with Banggood, have dealt with Ali before and not had any problem apart from them telling me they can’t view a video I made of the problem…
Anyways…so 80 watt is output 11 watts that is good cause I should be able to cut 6mm with 2 passes…
buying an output 10 watt laser from Sculpfun wood cost double Ali’s price , and being retired and on a fix income gotta watch the pennies/cents…
Could you please tell me the wire size I wood need for a 10 watt laser and possibly where I could order it from…
Sorry forgot to ask you I thought the sculpfun s9 laser had a 90 watt input with 5.5 watt output am I wrong… Thanks and have a nice day… 
Also be sure to match your input voltage (12v or 24v). A mismatch can end badly.
I have no idea… there are so many of these things out there…
If it’s a 12V laser module the current draw will be twice that of a 24V model. 80W / 12V is about 6.66A at 24V it’s half that.
If you expect to power the laser from the machines control board you need to know what voltages/current you can safely draw off the board.
You can run 10A though AWG16 gauge wire if it’s less than about 5 feet.
Don’t need to worry about the ttl/pwm signal, they all seem to have compatible inputs…
Make sense?
You don’t need a very thick wire. Those numbers are advertisement numbers, usually. Take the Sculpfun S9. It’s (sometimes) advertised as a 90W laser (usually they say “CO2 equivalent”). The optical output power is 5W. In general, the power a diode module draws is about twice or maximum three times the optical power. So, the S9 5W module takes about 10-15W electrical power. Actually, the whole S9 laser running at full speed and full laser power is using 36W (I measured myself). The 20W S30 Pro Max Sculpfun laser uses 95W electrical power when running all motors, air assist pump and laser module at full power (also measured).
Power consumption is sometimes elusive the way they sell this stuff.
I had though that my co2 was much less efficient than an led until reading a technical journal and actually knowing what voltage/current I was running along with a Mahoney meter… it was much more efficient than any of the led lasers…
This is also an issue when they tell you power consumption and they are referring to the whole machine or just the laser module… I noticed that @misken pointed this out, although I think it should be made more clear where/what they are measuring.
Using the link provided (I don’t speak the sites language) and this being only the laser module, is that the efficiency of these modules for 80W and the 40W, is 13% and 16% of input, respectively.
I’ve usually seen a conversion of < 20% maximum of the modules input power actually comes out…
Compared to the 20 to 30% that @misken specified… they are getting better…
Good luck
Thanks all for the replies…Have checked the measurements and will have to make a new bracket…
As for the wiring will look into that later when I order the module (not just yet) …
I was thinking/wondering (damn that hurts sometimes) if it wood be advisable to use a separate power supply https://www.google.com/imgres like this…
My workshop for the laser is at the end of the line and sometimes if an other saw, drill lathe is fired up the laser stops…
Cheers 
Edit some reason I can’t get this link to work…
Many of them come with a low cost interface board that will accept an external power supply.
Many laser module upgrades are more powerful than the originals and would require external power. The other signal are usually ok.
I have a brick (enclosed power supply) that I bough for mine…
Photo in post 3, you can see the green interface/power board.
This is similar…
Good luck
Then it doesn’t help to use another power supply for the module. The laser will stop anyway. The power spikes will crash the controller of the laser, no matter how the module is powered. You should either use another power line (preferred) or add an EMI protection filter in front of the laser hardware (laser and control PC).
Thanks Melvin…That was my first thought a new line but the expense…
will look into EMI protection filter…in the mean time when laser is on workshop is out of bounds for other work…
Cheers…
About 3/4 the way down is a picture of calipers measuring a 14.72mm thick round cut piece of wood. It amply shows the downfall of expecting the laser will cut overly thick pieces of wood. Looks like they had a forest fire while cutting that piece. You can see the large amount of carbon in the stock the plug was cut from.
Don’t count on 0.08mm cut, depends on thickness/power/heat/amount of carbon. With a feeler gauge I get ~ .12mm
3mm @ 240mm/min is probably correct, extrapolating to 6mm @ 120mm/min, dunno. I get double that speed with double the laser power.
So long as your expectations are sensible it seems cheap and capable, much cheaper than my Atomstack.
Go the 24V, but is that +/-12V dual rail or +24V ?
Doesn’t show air assist pump, only connection, doesn’t show power supply, only adaptor and cables.
2 X 5W doesn’t equal 10W, maybe 8W. Electrical power supply, maybe 10X laser power 80W+
The power supply you use can’t be cheap.