DX  » Community » Reviews » 20mW 532nm Green Laser Module (3V 11.9mm)
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  • 4 Star:404 (40%)
  • 3 Star:101 (10%)
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    • Overall Rating: 4
    • Price: 4
    • Quality: 3
    • Ease Of Use: 3
    • Usefulness: 4
    2 DXPoints
    earned for this post
    Good laser

    posted by dooiespons on 01/09/2013 Certified Owner

    Involvement:General (knows how to use it) - Ownership:more than 1 month

    Pros:
    - Really bright laser. - The beam is easy to focus. - Really cheap! - Useable for a simple laser projector
    Cons:
    - The wires let go easily, mine were already loose when i received it. - After a minute of use, the beam weakens. It gets too h...
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    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 4
    • Usefulness: 5
    2 DXPoints
    earned for this post
    20 mw 532 nm laser module

    posted by einyaa on 12/21/2012 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

    Pros:
    Good build quality, strong clear beam. Instead of try adjusting the focusing lens, turning the whole outer brass assembly a couple of rounds counterclockwise, a burning focus may be established about 10 cm from the laser. The original focus was adjusted per...
    Cons:
    Output is 20-30 mW when cold, but decreases til less than 20 mW when heating up after a couple of minutes use. This may be fixe...
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 3
    2 DXPoints
    earned for this post
    Very good module!

    posted by audiopluss on 11/01/2012 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:
    - the laser diode can be easily replaced - driver circuit is included - very low price - easy use in any hobby - You can really see the beam in night
    Cons:
    - low quality - the output power is not 20mW (only2,5 = the diode is 20mW) - if there is no cooling, the diode dies - the leads...
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 4
    • Ease Of Use: 3
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Really bright and cheap laser with huge beam

    posted by neumpe on 07/11/2012 Certified Owner

    Involvement:General (knows how to use it) - Ownership:1 week to 1 month

    Pros:
    -really bright laser -cheap -got an laser module and didn't have to disassamble anything
    Cons:
    -the two cable haven't been soldered. I have to solder them. -the workmanship varies from laser to laser
    View Detail » 
    • Overall Rating: 3
    • Price: 5
    • Quality: 2
    • Ease Of Use: 2
    • Usefulness: 3
    2 DXPoints
    earned for this post
    Cheap, bright, but low quality

    posted by GregSA on 07/04/2012 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:
    Well priced Bright
    Cons:
    Big variation between units. Spot size and brightness varies. Some units are slightly longer than others. The turn-on times als...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Really good

    posted by Hug0 on 10/22/2011 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

    Pros:
    really brilliant I can clearly see the beam, I can even blow up balloons but this are just black. green color and very nice Reallyyyyyyy Cheap !!
    Cons:
    The son (+ and -) are very fragile, they must be soldering. I think that a component are break because it does not work anymor...
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 4
    • Ease Of Use: 3
    • Usefulness: 3
    2 DXPoints
    earned for this post
    Nice little laser!

    posted by matej92 on 04/05/2011 Certified Owner

    Involvement:General (knows how to use it) - Ownership:less than 1 day

    Pros:
    -Low price -Powerful, bright dot, visible beam with long range -Easy to disassemble the optics and modify -Contains a driver circuit, only 2 AA batteries needed
    Cons:
    -No IR filter, but that's OK, because the price is very good
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Awesome!

    posted by MistaMiagi on 03/04/2011 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:less than 1 day

    Pros:
    Bright, very Visible Beam, adjustable power output, good build quality, 2 removable lenses (shown in picture) makes the cat go insane, Great for signaling extraterrestrials, most amazing laser i've ever owned.
    Cons:
    i obviously didn't get the same laser as the one reviewer who commented that it burns matches. doesn't even heat my skin, even ...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    HAHAHA! Truly overspec!

    posted by Leodahsan on 10/26/2010 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week

    Pros:
    - Bi-focusable (convergent/divergent lenses) - includes full driver and button (color assorted :D mine is black) - at the negative wire you can insert a spring for connecting to cells, on a host - removing all the lenses, you expose the frequency doubler...
    Cons:
    wires fall off very easily, but this is not intended for exposed use (use in a host) maybe the pot is very dangerous, if you t...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 4
    2 DXPoints
    earned for this post
    Super Bright

    posted by abc123abc on 05/03/2010 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week

    Pros:
    Super bright Threaded for lens adapters Push button Smaller than a AA battery 3V
    Cons:
    The push button. You have to solder shut if you want an always on feature. I can't get any more because of the FDA ban. :( Wir...
    View Detail » 
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