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Old 01-23-2015, 07:32 PM #17
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Default Re: Lasers on Aliexpress.com

Quote:
Originally Posted by tttonyyy View Post
Another one for AliExpress, check out my "True 300mw Output" greenie bought over Xmas.



Yes the diode is so badly mounted at an angle that it bounces part of the beam off the metal insides of the collimating lens.

Oh and is 80mW tops. Yes I know the cat should probably be wearing safety goggles.
ohh what a shame... only 300mW. Mine's 50,000mW Muahahahaha


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Old 01-23-2015, 07:53 PM #18
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Default Re: Lasers on Aliexpress.com

Quote:
Originally Posted by cyclonite View Post
ohh what a shame... only 300mW. Mine's 50,000mW Muahahahaha
I don't know if he is kidding but there is no way your 532 is 50W's.

Hec, 1W of 532nm is hard enough to achieve and a lot of heat is released during the DPSS process! Not only is 1W already expensive, but 50W's would be something only laboratories/universities could afford

-Alex
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655nm: ROITHNER 650 Pointer 5mW
635nm: Generic "Laser Pointer" Pen 5mW
593.5nm: LaserGlow Rigel-2 3mW
532nm: Z-Bolt BTG-6-C 5mW
515nm: Generic "Laser Pointer-515P-10" Pen 12mW
473nm: CNI GLP-473 6mW
450nm: Z-Bolt BLP-5-S Pointer 6mW
405nm: Generic "Laser Pointer" Pen 35mW



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Old 01-23-2015, 08:02 PM #19
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Default Re: Lasers on Aliexpress.com

This is a good one too:

http://www.aliexpress.com/item/450nm...617418588.html

100W, 1000000mW (insert random large numbers here) heh.

But that's nothing compared to this one:

HOT SALE presenter green powerful laser 50000MW lazer pointer projector pen for teaching meeting+18650battery*1+charger-in Laser Pointers from Office & School Supplies on Aliexpress.com | Alibaba Group

Yes that's right, a 50 gigawatt laaaaazer! I bet as soon as you turn it on it pokes a hole through the building and blinds everyone within a mile.

And all in a cheapy 301 host! Amazing what they can make in China
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532nm 5mW, 100mW x2, "True 300mw Output" (from China, actually about 80mW)
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Old 01-23-2015, 09:43 PM #20
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Default Re: Lasers on Aliexpress.com

Quote:
Originally Posted by Tha Greenlander View Post
I don't know if he is kidding but there is no way your 532 is 50W's.

Hec, 1W of 532nm is hard enough to achieve and a lot of heat is released during the DPSS process! Not only is 1W already expensive, but 50W's would be something only laboratories/universities could afford

-Alex
I'm not the one who's kidding. The people who list them on Ali Express are. Of course these can't be 50W.
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Old 02-11-2015, 01:07 PM #21
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Default Re: Lasers on Aliexpress.com

Quote:
Originally Posted by tttonyyy View Post
This is a good one too:

450nm 1000000mw/100W high power focusable blue laser pointer flashlight+burning laser+free goggles-in Laser Pointers from Office & School Supplies on Aliexpress.com | Alibaba Group

100W, 1000000mW (insert random large numbers here) heh.

But that's nothing compared to this one:

HOT SALE presenter green powerful laser 50000MW lazer pointer projector pen for teaching meeting+18650battery*1+charger-in Laser Pointers from Office & School Supplies on Aliexpress.com | Alibaba Group

Yes that's right, a 50 gigawatt laaaaazer! I bet as soon as you turn it on it pokes a hole through the building and blinds everyone within a mile.

And all in a cheapy 301 host! Amazing what they can make in China
Ohh yah that is indeed 50GW That's still nothing compared to the one fired from the Death Star
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Old 02-12-2015, 12:59 AM #22
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Default Re: Lasers on Aliexpress.com

Buying a laser off of Aliexpress from a China seller is ten times worse than on ebay, in my experience, you can expect to be ripped and never get what you pay for, not according to their descriptions. I am sure there are examples of good sellers, but for the things we want or the so called higher power ones, never what they say, 10 to 1 percent, or even less of what they say the power output is normal.
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