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So my 405 nm laser "pointer" from eBay is due to arrive soon. This made me wonder: is it safe to use Energizer e2 Lithium in these lasers? Back when Wicked Lasers was a lot more popular, there were many reports of Pulsar diodes being blown due to the higher voltage of lithium batteries. Is this...

Thanks for the replies, everyone. I just placed an order. Now to play the waiting game! *crosses fingers*

The user in question has 98.4% positive feedback over one-quarter million items, the vast majority of which are not lasers. The problem is it's going to take a long time to sift through the non-laser items; there seems to be no option for finding feedback on specific sales, and the Google...

Has anyone here ever bought any 405 nm laser pointers from "demonerrr" on eBay? The price is very attractive, and the user has sold 365 of them so far, but I'm not sure how they compare to LPF standards. Or are they all about the same?

The Gizmodo link: Okay, Sure, Let's Watch a Real-Life Laser Gun Destroy Raw Pork Edit: I'm not surprised it was an LPF'er that made this video. :-)

I was going to post this, but you beat me to it. :P

Re: New Nichia 9mm 1W 520nm diode I guess it's safe to assume these are multi-mode?

Or you could buy an IR filter and add it to the laser yourself. :-)

I wonder what is the minimum power required.

I have a generic 0.5 mW red laser pointer that I bought in 1998. :D

NASA Developing Laser Technology to Communicate Between Planets

Because LPF has helped me learn a lot about lasers, and that it's the best forum ever.

Anyone here ever tried to make a Death Star pumpkin?

Ahh, the perks of working in a lab...

Good call.

Wow, that's really awesome!

This thread really makes me miss being in school. Haha.

I believe nitrogen lasers can reach several megawatts in peak power.

I wonder if a mirror would be effective against it...

Hmm, over 200 views but no replies. I guess people here don't use these services often.