Recent content by momo1717

I was using this driver: 445nm 520nm 1W 2W 3W Laser Diode Drive Driver Board PCB 6-14V Voltage Input - Driver Circuit Board & Power supply - Components and Accessory I ordered the 1w version and I contacted the manufacturer later on and asked them about the output power for this unit and they...

Unfortunately I'am 100% sure, because I tested the module itself also on a DC power supply and it was the same. When I first got the module and the driver I also noticed that effect when the current was too low, so I can confirm this, but now at the end it was like 100 times more.

Thanks for explaining!! :):yh:

I'am sorry:yh:, but could you explain me please what the difference between 9mm and the other one is, exept that the second one is 9mm in size and that is with 2.5 and 3.3W more powerful. Is 9mm better? (The first is the one which is now broken) 1: 2W 445nm M-Type M140 Blue Laser Diode In...

It was a 2W 445nm M-type inside a big PC heatsink (with a hole drilled in) That was the module: 2W 445nm M-Type M140 Blue Laser Diode In Copper Module W/Leads | eBay

Would you recommend to buy the same one again? I would like to have a green one, but they are so expensive when over 100mw... :p :) Yeah, what is the purpose of that spring? ... I just took off the lens and noticed that spring inside.

I did yesterday a few more tests and the diode died more and more. I have no idea what happened, but the output power is now like 5mw or even less. The spot is barely visible with the naked eye. So sad :(

Yeah, it's difficult to tell. I get a nice spot on the first 10-20m when collimated (I have the three element glass for aixiz module) I have this 2W M140 module now 3 weeks and I noticed (at least I think this) that it has lost somehow a little of its power. When I got the module, one could...

Thank you :)

I understand. And what is with those cheep green ebay laser pointers. Are the they single mode, because they have no lines at all?

So does that also mean that those "lines" have some nanometer difference, for example the one on top and the one on the bottom in comparison to the middle one? :)

Oh OK, thanks for clarifying this! :)

Hi, yesterday evening I noticed some strange lines in the spot of my 2W 445nm laser when it is not focused. I wondered if this is normal, because I never noticed it before? Here some pictures.