Longer Ray5 5W - Best price-performance ratio
I bought a Longer Ray5 5W, and the machine is excellent. It offers a very good price-performance ratio, and unlike other devices I own, this one is very robust. It has a built-in air assist port, which is fantastic, allowing me to turn it on or off with just a software command, without any complications. My next upgrade will be the 30W laser, obviously from Longer, to get even more use out of it. I had a minor issue with the firmware, and the Longer team's response was incredible. The machine was fixed in just 3 hours. This device is 100% recommended!