Cons: Cannot focus. Head is not removeable but welded/glued on and lens cannot be accessed for wiping or cleaning. Due to these drawbacks the life of the unit is limited. Should have provided for lens accessibility and removal of heat sink weighted head.

Other Thoughts: Good Point is it takes Rechargeable Lithium CR123A batteries and so can operate cheaply. Battery Compartment has good threads and overall finish is VERY GOOD. Comes with Lanyard and as such is protected from dropping onto hard surfaces. This appears to be a 20-30mw that has been pushed by the manufacturer to the maximum output and so the outcome is a Green Laser with High Power for short bursts of only a few seconds per burst.

Bottomline: Get a few of these! For the money how can you go wrong? Even if every other one is weak - you will have extra parts and geez - even weaker ones of these would make Excellent Holiday Presents. I would recommend you buy one or more way before the holidays approach - not to mention the Dollar's purchasing power dropping daily due to inflation. Prices just CAN'T go lower on Green Lasers from our experience - we have been into purchasing and selling lasers since 1992. - d.k.a./greatdeal711

Pros: very nice to use, great feel and weight the button is solid and dosnt jiggle around like other lasers do, extremely bright, no warm up time less than half a second. i dont know if it can burn matches or pop ballons but im pretty sure it can, can melt plastics.

Cons: the laser isnt much brighter than 50mw although it is much hotter somehow. cant think of anything else bad.

Other Thoughts: not much else i can think of exept the batteries last for ages

Pros: POWERFUL LASER! Label says 100mw but on our Discrete Frequency 532nm Analog Meters only registers as high as about 70mw and only momentarily before falling down to 25mw to 30mw. Surge of High Power lasts about 3-6 seconds maximum, after that the beam strength sinks. Nevertheless - Great for fast pointing or for INTERMITTENT FEW SECONDS AT A TIME BURSTS! Many times a short burst of 3-5 seconds is Good Enough for many signaling purposes or for showing and pointing to distances of 100 yeards. LOT OF BANG FOR THE BUCKS!

Pros: -Verrrrrrry solid build.
-NOTHING cheep about it. this is defenetly a quality laser.
-Verry small and compact, im the image it looks alot bigger.
-it comes with a nice box
- comes with a wrist strap
- runs on 1 singl cr123 battery
- visible beam (only at night)

Cons: i was expecting this to be alot stronger / briter.
after a comparison of this laser with a true 30mw laser, i think that they are about the same.
other then that, its good


Bottomline: Best laser I have recieved yet. Get one!? This laser is SWEEEEET!

Pros: Nicely weighted, comfortable feel, beam visible in room with daylight, heat can be felt on skin, Beam extremely visible at night.
Thank You Dealextreme!!!!

Cons: Not one single con at all!

Other Thoughts: I'm gonna buy some balloons and see if it can pop them. It pops big bubble wrap with ease. I Also purchased the 200mw red.
I compared the heat with my 30mw "true green" laser and this bad hats laser pown'd the 30mw "true green" laser out of the swimming pool!!!