This Green Laser Pointer emits a very bright green dot, visible in daylight. Easy to adjust using a laser bore sighter. Kept my adjustments parallel so guessing where the bullet hits according to the green do is not needed. Hit is always 2 inches high at any distance (well any distance that you would use the laser anyway).


http://www.htpow.com/green-5000mw-laser-pointer-cheap-htpow-high-power-green-laser-pointers-starry-5-in-1-focus-adjustable-p-1004.html
If you're setting up burning laser tripwires for instance, these should be laid low to the ground to avoid the gaze of curious children. Higher powered scanning effects should be aimed just above head level so that beam's effects can still be experienced without danger.Laser pointers are generally less than 5 mW, but a laser of any power can cause damage to optic nerves if viewed directly for a prolonged period of time. Catching a brief glimpse of the beam is not dangerous at these powers. In practical terms, this means that you should not direct beams at anyone's eyes.
http://www.htpow.com/ultra-powerful-laser-pointer-blue-10000mw-class-iv-445nm-p-1028.html
"I have some balloons that need popping.""My cat needs one.”""Look! It's green!" - these are all perfectly legitimate reasons for buying a laser pointer. But what to do when you're bored of pointing at things? Never fear: I have answers.Align a blue laser pointer module with a photo-resistor and you have an invisible tripwire. The photo-resistor should read a constant high as the laser beam hits it; until the beam is broken by an intruder and booby traps are activated. The only difficulty is aligning the laser and tiny photo-resistor; you'll need to fix them securely so they don't misalign later. Your laser tripwire can then be used as a trigger for high speed photography, such as a water droplet falling.
http://www.htpow.com/laser-beam-dot-sight-htpow-dot-laser-sight-rifle-green-laser-p-1104.html
This is a great laser. I only had a few requirements when looking for a Laser Sight and this one definitely nails them all. Those requirements were under $60, green laser, have a decent distance (this surpassed my expectations here), have a pressure switch. This burning laser is nice. We haven't actually shot with it yet but we have it in alignment with the sights so we will see for that. We are only using on a 22 so the recoil shouldn't knock this laser of target. My only complaint (as of now, if this changes I will add to this review by removing it and rewriting it) is the pressure switch doesn't fit our for grip on the weapon. It's fatter than the spot for the switch on our grip. This isn't a huge problem though because I can always purchase a skinnier pressure switch.
http://www.htpow.com/super-high-power-blue-laser-pointers-10000mw-445nm-class-iiib-p-1021.html
Using the long exposure mode on your camera, you can make some really interesting photographs. Just turn the lights out, release the shutter, and start waving your laser pointer around.
If you paint a wall with glow-in-the-dark effect paint, you'll also find a laser pointer will excite the paint sufficiently to keep it lit for some time - so you can effectively "paint" without the long exposure of a camera. You may need a strong blue, violet or UV laser for this to be really effective though - red and green don't work so well. In this case, the technique has been been combined with an Arduino that reads tweets!

http://realblog.zkiz.com/lasernzh/204184
http://lasernzh.cuisine-spirit.com/have-you-ever-owned-a-powerful-laser-249614.html