SO I ordered a laser from Etian Feb 2. Received it after a fake shipping number or two, took about a month I believe to receive. Unfortunately the diode was damaged as it looked like someone dented the top of the can down and cracked the glass. The laser barely worked and very low power, it seemed the diode was damaged. Since then I have emailed back and forth with him about getting a replacement diode/driver module, and he responded for a while with empty promises of shipping numbers and random dates he said he had shipped it, repeatedly, then started saying my email wouldn't receive the image proof he had shipped anything, and now, after all this and many many emails asking for udpates and receiving random information that meant nothing, he has finally stopped responding. Wish so badly I had a good business transaction with Etian but this was anything but. I'm out a bunch of money now and have no working laser still, almost 3 months later. I'll never buy from him again.