20mW 405nm Blue-Violet/Royal Purple Laser Module (3V)

SKU: 80920 (Added on -)
Price:
US$
7.76
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Ships within 7-10 business days
20mW 405nm Blue-Violet/Royal Purple Laser Module (3V)
- Power: 20mW
- Voltage: 3V
- Current: under 250mA
- Wavelength: 405nm

Dimensions: 2.20 in x 0.47 in x 0.47 in (5.6 cm x 1.2 cm x 1.2 cm)
Weight: 0.53 oz (15 g)

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Quantity 3+ units 5+ units 10+ units
Rate USD$ 6.88 shipped USD$ 6.86 shipped USD$ 6.83 shipped

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Customer Reviews

Average Customer Review (7 customer reviews) 4

100% of customers would recommend this product to a friend (7 out of 7)

  • 5 star: 3 (0%)
  • 4 star: 3 (0%)
  • 3 star: 1 (0%)
  • 2 star: 0 (0%)
  • 1 star: 0 (0%)

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  • Not so good

    posted by rodrigocaus on 12:39:49 G2T 19/02/2014 certificated customer

    Involvement Level: Expert (understands the inner workings)

    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. Mine didn't come with a potentiometer.

    Other: Didn't like it. For me it's not useful.

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    • Overall
      3
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      4
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      5
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  • Cheap purple laser

    posted by GigaSan on 07:33:35 G6T 21/06/2013 certificated customer

    Involvement Level: Expert (understands the inner workings)

    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 with a tendency to UV light. * Dangerous. Do not look into the beam or at reflrections of it. The eye is not very sensitive at 405mn, yet there is a lot of power in that beam. It will also take out a phones camera sensor pixels .

    Other: Good purple laser with high output. Be careful using it !

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    • Overall
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  • OK value for money. Multi purpose use

    posted by ebrustad on 07:31:37 G1T 20/01/2013 certificated customer

    Involvement Level: Expert (understands the inner workings)

    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 all components. Extremely poor packeting from DX, and the laser casing crushed other items in the envelope. The brass casing was undamaged, but some of the components on circetboard was damaged.

    Other: Dont buy unless u have a specific need or project. It cannont be used for anything out of the box.

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    • Overall
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      5
  • Pretty purple laser module, ready-made for a certain container

    posted by thierrius on 10:00:32 G1T 14/01/2013 certificated customer

    Involvement Level: Expert (understands the inner workings)

    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 connect the wires. Luckily someone else has put in a review and pictures (thank you sincerely for that!), otherwise I would have had a tough time as an electronics beginner.

    Other: Good value for money purple laser

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    • Overall
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  • 20 mW 405 nm "blue-ray" laser module

    posted by einyaa on 23:30:35 G12T 21/12/2012 certificated customer

    Involvement Level: Expert (understands the inner workings)

    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.

    Other: Good UV-laser for this price. If you don't know what do use UV-lasers for, this is not the unit for you. For visibility choose green. Not to be confused with 450 nm lasers, which are true blue and not ultraviolet/violet.

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    • Overall
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      5
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      5
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      5
    • Usefulness:
      3
  • Focusable! Lasermodule

    posted by Hexacat on 14:42:20 G12T 07/12/2012 certificated customer

    Involvement Level: Expert (understands the inner workings)

    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.

    Other: Workin current 150-170mA @ 3V

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  • Great build bad beam

    posted by paul646 on 02:13:01 G6T 21/06/2012 certificated customer

    Involvement Level: Expert (understands the inner workings)

    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, rather than assembled, so it would be imposible to focus unless you detach it, and put a good quality Coated Lense, for purple lasers. That lens cost about 8$ in eBay o sites like that, here in Dx there aren't good lense for this kind of laser.

    Other: Good for fun an quite powerfull, you can use it to make draws in dark (in tv or screens) but as it isn't powerfull the draws disappear quickly. I wanted to buy the SKU: 80923(100mW) wich is much more powerfull but it isn't in stock.

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    • Overall
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showing latest 7 entries. Click here to read all 7 reviews.

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