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It's weird how you say it's very bright, because my friend had a 75mW 532, and while it was bright, it wasn't like "wow that's goddamn bright!"

mortuus is right, theres really no dot to see since youre pointing the beam away at infinity. also, the brightness of the beam is negligible compared to the sources that really screw with your nightvision, like a guy who shows up to a star party with his headlights on.

Sweet, thanks a bunch, I'll check these out soon.

Thanks for the response. I originally would try to keep it in my pocket or run it to let itself heat up, but for the weaker 5mW ones, I think the heat was sucked away by the cold weather faster than the diode could warm up, so I was screwed either way. Can you recommend a 532 between 100 and...

Hello all, It's been quite a while since I've posted here. Anyway, I am trying to decide between a 1.1W 450nm from Fast Tech (it's advertised as being b/w 1W and 2W, but a YouTube video I found showed it reaching 1.1W), or a 100+ mW green laser. I have no intention of using this to burn stuff...

Hello guys, I have had a problem in the past with green laser diodes, they don't work in the cold. I've had a few cheap ones in the past, that once they are exposed to the cold, the beam output drops. I have a 50mW diode on the way. I don't know if the driver is made to be ACC or APC. In...

Yes, I did mean to say a DPSS laser. I understand how they work, which is why I didn't throw out the laser and decided to try and replace the diode :) The one I bought was just the diode/housing with no driver, and was advertised on eBay as 100 mW. So in reality it's probably 50mW. And...

Hey guys, a little while ago, I burned out a green laser diode that I had. I screwed the housing apart, and saw the various components; the piece with the IR diode itself, the expanding lens, and the focusing lens. Now the only thing I could imagine that went wrong is the diode itself. So I...

You might be able to light those matchbook type matches. The wooden ones are a different story that require higher mW

I got what was advertised as a 100 mW green diode from ebay for $20. It probably wasnt 100 mW, and I accidentally burned it out, but it was nice to see a cool strong beam for a little while.

something there smells fishy

In my experience, it has taken about 1-2 weeks to ship from Guangdong. I have ordered things however, that have taken over a month.

Bob, can you comment on the BK Precision model 1550?

Becuase I don't want to destroy a diode, especially if it is expensive. It would be great if the power supply was set back to zero every time I was done working, but sometimes people forget. Well according to that guy Bob who seems to know his stuff, it may take a few microseconds for the...

If inductive kickback is a problem, couldn't you put a diode in anti-parallel with the inductor to protect it?

Couldn't this be achieved by throwing in an inductor into the output of a DDL driver? As soon as the voltage spike hits, the inductor will resist the change in voltage/current and slowly loosen the throttle on the v/i allowing it to slowly raise. This is nearly the same procedure I take...

But then how can you ever be safe in turning on a diode if the regulator doesn't regulate for enough time to possibly kill a diode?

Nothing specific, I was just browsing around, saw some cool orange and yellow diodes. I would check them out if the price was right.

I didn't look straight into it. I looked at it from an angle. On a related note, I hear people saying that they order diodes from CNI. I can get to the CNI website, but how do I order?

Both the first supply and the supply I built are regulated. A spike shouldn't have happened. What are the odds that it's just some cheap Chinese p.o.s. and crapped out?