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laser 3v Customers Reviews

  • Red lazer modules.

    posted by jakoab

    I think it is a very good red lazer module for a prise like that, because it works very vell. And all the lazer modules lighted weary well.And it is easy to use when you can somthing about electronic.
    Very good price, all of the lazers worked very vell and they are easy to use.Because the long delivery time makes me give it four points instead five points.
  • Exceeded my expectations!

    posted by poptart

    The laser is much more powerful than I expected! I am able to pop balloons if I put a black dot on it with a sharpie. I have also been able to cut black electrical tape, although it does it slowly. Fit perfectly into a AAA laser housing that I had. The Lens part of the laser is also grounded (not just the black wire) so I was able to cut it off in my housing. Visible beam in lit rooms, but not in sunlight; not very visible, but definitely there. However, you cannot feel much heat on the skin. Seems to go for miles into the night sky.
    This laser is amazing! It is more powerful that advertised, and cheap! What a combination! A new laser with this power would probably be over $100. Great for astronomy!
    If you want a laser, buy this module. You can't go wrong. Even if you're not interested in burning, its beam is extremely visible at night. Buy it.
  • Great module for DIY project

    posted by Fortrix

    - Build quality is rather good for such a cheap device- The diode is protected with compound at the circuit side- Potentiometer is present- Collimating tube is made of a sturdy alloy, not plastic- Main pro - the dot is much brighter than expected (possibly wrong pot position from the manufacturer but it's good in this case) even on the black non -reflective surfaces- 405nm seem to be real 405nm, not 400 or other near-UV, so the dot is very visible
    - The unit came exactly in 3 weeks after ordering (quite fast for unregistered airmail) in double bubble-wrapping- I think the same diode is used at least in 50 mW modules, probably the only difference is in pot position- Although the beam is divergent, the tube has a possibility to screw a focusing cap onto it. It remains just to find some. :)
    If you need an inexpensive but bright and compact violet laser module for a DIY project you can definitely choose this unit. Just take care to protect the lens and your own eyes. Good luck.
  • 2~5mW 650nm Cross Laser Module (3V)

    posted by fabio1964

    This is the best line 5mW line laser I was able to find on this site (I ordered every red line laser on this site and tested them all). Line's bright and sharp. No distortion. Edges are clean.
    Other: If you're looking for a laser level and don't want to fork out $100+ for the kind sold at hardware stores - get this one. If you're an engineer assembling a line scanner, or a person that bought "David 3D" scan software, looking for the laser part - get this one.
    okkk
  • Overall great buy

    posted by qwertymodo

    Very powerful, considering the 5mW rating. Able to faintly make out the beam in a lighted room. The dot is clearly visible on the hillside out my window ~0.5 mile away in the late afternoon/evening.
    The switch is a momentary switch that you have to hold down. I wish this weren't the case because it makes DIY projects very inconvenient. If you put it inside any kind of case, the switch is inaccessible. I rewired mine to bypass the switch so I could use a switch mounted to the outside of my case. The on-chip pot allows you to dial up the power a bit as well which is nice.
    It's a great buy for a DIY project, and a great price, it just takes a bit of work.

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