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laser 405nm 5mw

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laser 405nm 5mw Customers Reviews

  • useful for presentations

    posted by acokeaday

    cheap and easy to use. violet is seldom found around, thus making your laser color unique. though not as strong as Red laser based on color spectrum.
    get if you need a cheap laser and want to be unique. Helps out a lot in presentations and being different in color allow others to spot where you are pointing.
    will not purchase again, will go for something of better quality.
  • Fun and useless

    posted by wtarr

    Stabler and easier to use than the naked module. The beam is bright enough to be visible at night, despite the wavelength to which the eye is not much sensible. Comes with its AAA battery, looks clean.
    I tried it with the gypsophilia cap that came with my green pointer. It looks much better, you can plot a large number of stars on a ceiling or on books and various stuff that fluoresce in many different colors. I should have bought it in this version.
    Nice toy, but buy it with a gypsophila cap if available. It's as much useless but offer additional possibilities.
  • Excellent, Unique Laser

    posted by zerodgz

    This laser is a very unique blue/violet color. The color is hard to describe, but it is similar to the light emitted by various "UV" LED gadgets, and I imagine its laser diode is driven by similar hardware. In a world stuffed full of people waving around dollar store red laser pointers (and an increasing number of people waving around green laser pointers) this purple color is refreshingly unique. I haven't seen anyone anywhere selling lasers of this color. (The Blu-Ray derived blue lasers, while also being much more expensive, are a different color.) The laser beam also contains enough near-UV to make fluorescent and glow in the dark items light up. Using the laser beam you can actually DRAW on glow in the dark surfaces like posters, and the path you doodle will glow for quite some time.Construction quality is quite good, and about on par with my "executive" Radio Shack red laser pointer which cost about ten times more (ten years ago).
    Comparability with regular AAA batteries is a huge plus. Many lasers sold in discount stores around here are pen sized for no apparent reason (as opposed to keychain sized) but demand 3x LR44 batteries which are expensive and don't last long. It is refreshing to see a laser big enough to take AAA's actually use them, providing long battery life with cheap (and optionally rechargeable) batteries.It is unknown how much extra UV radiation this laser emits. If you are paranoid about safety, a simple pair of UV400 sunglasses or safety glasses will block the vast majority of all the light emitted from this laser. I have a pair of clear (no darkening) UV400 rated safety glasses that block nearly 100% of this laser. Conversely, a pair of my cheap dollar store "Total UV Protection!" sunglasses do not attenuate the beam at all. This laser seems to be a good way to test the UV blocking effectiveness of eyewear!
    This is an excellent and for now very unique plaything. It is certain that no one in your area has ever seen a purple laser before, and shining it at UV reactive surfaces is tons of fun.
  • Nice laser

    posted by hongnhan

    the laser is very good for exciting the flourescence dye. The light is powerfull. But beware when using because it's very dangerous for your eyes. Only use with your mind. Beauty outlook. Best product.
    Nothing except it take a month to get to me. Need to be faster than that. I had thought my package was gone away.
    It's very good for scientific purpose. It's was cheap and power full. It's also stable when i fed an 5hz square pulse into it. And it operate 20000 time on/off but it still alive.
  • Fantastic laser with rich indigo color

    posted by librin

    Definitely one of the best gadgets on DealExtreme. I've never seen a laser other than red/green, and this particular one is fascinating.The purple dot is less visible than the red/green one (obviously) but pleases the eye very much (except if you point the laser right into it).Made of really high quality materials, the surface is soft to touch and looks expensive and durable.
    Such things here cost 4 times more than this.
    A real 405nm purple laser, not blue (445 nm). You should buy it.

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