DX  » Community » Reviews » 20mW 405nm Blue-Violet/Royal Purple Laser Module (3V)
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  • 5 Star:433 (43%)
  • 4 Star:433 (43%)
  • 3 Star:141 (14%)
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    • Overall Rating: 3
    • Price: 4
    • Quality: 2
    • Ease Of Use: 5
    • Usefulness: 2
    2 DXPoints
    earned for this post
    Not so good

    posted by rodrigocaus on 02/19/2014 Certified Owner

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

    Pros:
    It's a cheap, great blue laser module. Pretty easy to use: just plug a battery on the spring and plug the positive at the board. It seems well soldered, work without any problems.
    Cons:
    Pretty hard to focus, you have to heat the metal part to unscrew the lens, because it is glued. It can't burn even a match. Min...
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    • Overall Rating: 5
    • Price: 4
    • Quality: 3
    • Ease Of Use: 4
    • Usefulness: 4
    2 DXPoints
    earned for this post
    Cheap purple laser

    posted by GigaSan on 06/21/2013 Certified Owner

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

    Pros:
    * Powerful laser with 3V power supply and switch attached. * Fast startup, high UV emittance. * Very good where UV laser light is needed. * Focus ring present, but fastened with glue.
    Cons:
    * High divergence. The laser does not produce a spot, but more of a bean-shaped point. * Low visibility, this is a purple laser...
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 3
    • Ease Of Use: 3
    • Usefulness: 5
    2 DXPoints
    earned for this post
    OK value for money. Multi purpose use

    posted by ebrustad on 01/20/2013 Certified Owner

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

    Pros:
    Nothing more - nothing less. Hwat u see in the picure, is what u get.
    Cons:
    Rather poor buildt quality. All components sould bed resoldered for smooth operation. My laser was unstable until I resoldered ...
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 4
    • Ease Of Use: 3
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Pretty purple laser module, ready-made for a certain container

    posted by thierrius on 01/14/2013 Certified Owner

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

    Pros:
    Cheap laser, with control board, spring for battery and press-button, all in a simple but usefull container.
    Cons:
    This laser was ready-made for some kind of laser-flashlight. It comes without manual or even a simple explanation of where to c...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 3
    2 DXPoints
    earned for this post
    20 mW 405 nm "blue-ray" laser module

    posted by einyaa on 12/21/2012 Certified Owner

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

    Pros:
    Reliable blueray diode laser module. Not so small beam, as this is a diode with focusing lens - not a DPSS-crystal. But the beam has good and low divergence. Will not get hot, so duty cycle is not a matter here.
    Cons:
    Low visibility. Not a surprise as this is a near ultraviolet laser. In the dark the beam is somewhat visible.
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Focusable! Lasermodule

    posted by Hexacat on 12/07/2012 Certified Owner

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

    Pros:
    Great 405nm Module. This module IS focusable! The lensholder is glued, but if you heat he brass to around 50°C it was possible to unscrew the lens. Remove it completely to clean it from the glue. If it is focused on a small dot, you can even burn things!
    Cons:
    Epoxy at the diode/Driver. But you can remove it with a sharp knife.
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 5
    • Ease Of Use: 4
    • Usefulness: 3
    2 DXPoints
    earned for this post
    Great build bad beam

    posted by paul646 on 06/21/2012 Certified Owner

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

    Pros:
    Easy to use. Strong build.
    Cons:
    Completely NOT focusable. There is a focusable lense when you open it but it's imposible to adjust it, maybe because it's glued...
    View Detail » 
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