DX » Community » Reviews » Invisible Ink Pen with Ink Revealing Blue LED (3*AG3)
5.0
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  • 4 star 17 ( 55% )
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  • good for bad students :p

    posted by Eternisis on 12/01/2010
    0

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

    Pros:

    -Comes with 6 batteries (3 already inside, it comes working, and 3 extra)
    -Looks like a normal pen
    -UV Light isn't that strong, so it might be imperceptible during tests, but I wouldn't advise anyone to cheat (I never did).

    Cons:

    -The ballpoint doesn't fully retract, which makes me think the ink might dry out eventualy with no use

    OtherThoughts:

    -They could have made the uv light a little weaker, and maybe even somehow focusable so it won't spread out and people notice a shinyng pen.

    Bottomline:

    Overall a good think for its price.

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