Old 09-08-2014, 08:47 AM #1
Alaskan's Avatar
Super Moderator
 
Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,116
Rep Power: 1012790
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Super Moderator
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,116
Rep Power: 1012790
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default China ebay seller lyzq2000 over rated 532nm "200 mw" laser.

As expected, you get what you pay for. For 59 dollars you too can get a 100mw laser, a significant part of that power IR. They list them as "200mw" units but nope, they are less than 100mw of green. Total power measured was about 107mw, I don't know how much is IR but without an IR filter in it, I am guessing a substantial amount.

200mW 532nm High Power Green Laser Module Suitable for Waterproof Laser Host | eBay

That said, for 59 dollars, still not a bad deal at all, a few years ago you could have paid far more, just that I don't like over rated listings.


__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

Compare different colors: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

Last edited by Alaskan; 09-08-2014 at 09:17 AM.
Alaskan is offline   Reply With Quote


















Old 09-14-2014, 11:10 PM #2
Marco Polo's Avatar
Class 2M Laser
 
Join Date: Nov 2012
Location: Ohio, USA
Posts: 614
Rep Power: 5432
Marco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond repute
Marco Polo Marco Polo is offline
Class 2M Laser
Marco Polo's Avatar
 
Join Date: Nov 2012
Location: Ohio, USA
Posts: 614
Rep Power: 5432
Marco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond reputeMarco Polo has a reputation beyond repute
Default Re: China ebay seller lyzq2000 over rated 532nm "200 mw" laser.

You could also filter out the green and try to measure how much IR comes through. It won't be completely accurate as some of the IR will reflect off the filter (just as some 532 will reflect off an IR filter) but it will give you some idea of how much IR you have.
__________________

808nm : SkyLaser HL808 820mW
650nm : [C6] LPC-826 215mW - SkyLaser HL650 175mW - Radio Shack <5mW
638nm : Opnext HL63603TG 190mW - AtlasNova <5mW
632nm : Metrologic ML-868 <5mW - Uniphase 155ASL-1 HeNe 0.95mW
543nm : Melles-Griot 05-LGR-193-497 HeNe 2.4mW
532nm : SkyLaser HL532 w/ IR filter 200mW - Fasttech SD-301 120mW - Lazerer LZCS 105mW - Laser 301 custom mod 85mW - various Laser 301's
520nm : [C6] Osram PL520 110mW - SkyLaser HL520 50mW
450nm : [C6] Osram PL450 260mW - Lazerer LZCS 145mW - SkyLaser HL450 95mW - SkyLaser LP450 90mW
405nm : Laser 303 85mW - Laser 301 90mW

Radiant X4 LPM from Illumination Supply


CHEAP BATTERIES CAN KILL YOU - please read this thread to see the truth about UltraFire and other CRAP brands!
Marco Polo is offline   Reply With Quote
Old 09-15-2014, 01:17 AM #3
Class 2 Laser
 
Join Date: May 2012
Location: Northern CA
Posts: 301
Rep Power: 17
Lethere Belight has much to be proud ofLethere Belight has much to be proud ofLethere Belight has much to be proud ofLethere Belight has much to be proud ofLethere Belight has much to be proud ofLethere Belight has much to be proud ofLethere Belight has much to be proud ofLethere Belight has much to be proud of
Lethere Belight Lethere Belight is offline
Class 2 Laser
 
Join Date: May 2012
Location: Northern CA
Posts: 301
Rep Power: 17
Lethere Belight has much to be proud ofLethere Belight has much to be proud ofLethere Belight has much to be proud ofLethere Belight has much to be proud ofLethere Belight has much to be proud ofLethere Belight has much to be proud ofLethere Belight has much to be proud ofLethere Belight has much to be proud of
Default Re: China ebay seller lyzq2000 over rated 532nm "200 mw" laser.

Actually kind of funny and sad that this chinesses BULLLL SHIITTT claims of power have been going on for YEARS and people keep getting sucked in.
Lethere Belight is offline   Reply With Quote
Old 09-15-2014, 02:51 AM #4
SilverFire's Avatar
Class 2 Laser
 
Join Date: Aug 2014
Location: Viginia Beach VA
Posts: 486
Rep Power: 49
SilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond repute
SilverFire SilverFire is offline
Class 2 Laser
SilverFire's Avatar
 
Join Date: Aug 2014
Location: Viginia Beach VA
Posts: 486
Rep Power: 49
SilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond reputeSilverFire has a reputation beyond repute
Default Re: China ebay seller lyzq2000 over rated 532nm "200 mw" laser.

I think some Chinese "junk" is cool. The $8 laser 301s and some other cheap lasers from eBay will probably last you a good 1-2 months of happy sky pointing before dying. I think a lot of people just buy "junk" lasers as starters or practice tools before buying bigger and higher quality devices. But yes, a lot of Chinese laser sites do rip people off and sell trash that is worth $10. And as Lethere belight said, I too wouldn't trust the power ratings of some Chinese dealers.

And that looks like a cool deal Laser Project. Let me know how long it lasts and if its worth the 60 bucks in the long run.
__________________
lllllllll------------
Silver

[COLOR="Blue"]SkyLasers LFP 445mm 1W
SilverFire is offline   Reply With Quote
Old 09-15-2014, 04:28 AM #5
upaa27's Avatar
Class 2M Laser
 
Join Date: Jul 2013
Location: San Francisco
Posts: 624
Rep Power: 191
upaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond repute
upaa27 upaa27 is offline
Class 2M Laser
upaa27's Avatar
 
Join Date: Jul 2013
Location: San Francisco
Posts: 624
Rep Power: 191
upaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond repute
Default Re: China ebay seller lyzq2000 over rated 532nm "200 mw" laser.

Quote:
Originally Posted by SilverFire View Post
I think some Chinese "junk" is cool. The $8 laser 301s and some other cheap lasers from eBay will probably last you a good 1-2 months of happy sky pointing before dying. I think a lot of people just buy "junk" lasers as starters or practice tools before buying bigger and higher quality devices. But yes, a lot of Chinese laser sites do rip people off and sell trash that is worth $10. And as Lethere belight said, I too wouldn't trust the power ratings of some Chinese dealers.

And that looks like a cool deal Laser Project. Let me know how long it lasts and if its worth the 60 bucks in the long run.
I have to agree. Going to light some fireworks with a green instead of blue for cheap? Just grab a 301.
upaa27 is offline   Reply With Quote
Old 10-16-2014, 08:15 AM #6
Alaskan's Avatar
Super Moderator
 
Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,116
Rep Power: 1012790
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Super Moderator
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,116
Rep Power: 1012790
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default Re: China ebay seller lyzq2000 over rated 532nm "200 mw" laser.

Well how about this one, I ordered a 50 mw green fat beam 532nm laser and when I got it, AGAIN.... it didn't match what the seller stated its output would be... INSTEAD I received a 150mw output green laser! How much is IR, I don't know, but it sure is bright and lovely :P

Fat Beam 50mW 532nm Green Laser Diode Module Laser Stage Lighting Show Focus | eBay

I want more!
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

Compare different colors: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3
Alaskan is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 10:45 AM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC