Never mind… I just googled it. $$ :money_mouth_face: $$ 
ha ha… a 3+ watt laser BETTER be pretty bright and visible for “a while” i should think, lol…
how do you think will a U King ZQ-J8 445nm Blue perform ? (hottest version ;) )
Now that would be something! …I have to say though, that thing is quite ugly! The silver ones with the columns around it are much more appealing.
With the regulations limiting import of an assembled laser, and with the Chinese habit of not telling exactly what power level or even which diode is in use, it’s very difficult to say what you’re getting.
Mine is a Nichia 9mm diode, assembled by a known Custom Light maker in a full custom copper host. They do run quite expensive in the higher levels, and mine isn’t the highest.
I took this with me on a family vacation last month to visit the wife’s family. My b-i-l was playing with the switch (batteries in my hand) and when I took it outside to show them how it worked I put the batteries in it and as soon as the copper tail made contact it came on, with the business end half an inch from my palm! I reacted, yeah boy I reacted, it felt like a red hot needle poked me, left my hand stinging for hours with a tiny little blister to show for it. A mere fraction of a second, better the toughened hand than an eye right? I forgot he’d been clicking the switch on/off.
Just saw one of the smallish blue ones at GearBest for $7, had to get it! 
Have no real idea what it’ll be like, but they say it will light a match. My 3 watt version will turn a yellow jacket nest into a smoldering den of destruction from 30’ away. Which is why I wanted it in the first place. With the larvae inside, the paper nest won’t actually burn, but it sure wreaks havoc! (I’m highly allergic to yellow jackets, our most potent wasp, and of course we have them all over the place!)
Ha… That’s a great use for a laser! Wonder if I could market that? 
Let us know how this new one works.
I was hoping to be able to kill the adult wasp, but they fly away instantly when the laser touches em. A really big spider succumbed to it with some tracking.
I might try using a tripod and see if I can severe the attachment point of the nest, dropping it to the ground. I think that would be most effective if I can get a stable enough beam to burn that thin stalk.
Does any of you know how much heat can produce this green laser from first post in full zoom mode ?
You have to be very carefully with those 405nm lasers
Most of em run Blue Ray burner diodes at 100-200mW
they are not as bright as 1-2mW 532nm output
But especially because of the almost UV light they are a lot more dangerous at same power level than other visible lasers
Those green 301 run at 15-35mW depending on model and temperature
The red 658nm run at 100mW, DVD burner diodes
I have a laser powermeter and are aware how dangerous those pointers are just ordered them for testing
A 1mW 635nm laser from my rangefinder is almost as bright as 100mW 405nm or 0.3mW 532nm
If you want a save pointer get one with APC (auto-power-controlled) with 1 or 5mW depending which country regulations you have
Thanks for the info, but I need to know if someone measure a themperature in celsius that this green can produce when you point it in somewhere…
http://www.gearbest.com/led-flashlights/pp_106566.html
Also i want to know is themperature drastically changed when is full zoom on and when you full spread beam.
Laser light has no temperature
the temperature depends on how much light is absorbed, the volume you heat and the thermal flow leaving this volume
that is why you can vapor metal with a Laser that has on average a few milliwatts, but it uses very short pulses so the heat has no time to flow out of the volume you heat
watch this video on 1:50
Dam. I would like to order the Blue one for only 5,42€. But with German regulations (only 1mW) it will not pass the customs office :rage: .
If you want a blue one you need 450nm direct diode they use 10 or 50mW Osram Diodes, not nessesarely needed APC as there are no temperature sensitive crystals needed to convert IR diodes to visible light
473nm pointers are extreemly unstable without APC or Q-switch and expensive as they are rare
Costs for a safe pointer is at least around 70-100€ no matter if you go 450nm blue, 515nm green diodes, a DPSS green with APC is not really much cheaper
Of course you can get those 3-5W labeled 445nm Lasers with recycled 1.6W M140 diodes overdriven fot the same price, from China they customs will conficate them but within EU or UK you can get them, but they are extreemly dangerous and got a high divergence and fat beam compared to a 10mW single Mode Osram 450nm Diode or even a DPSS
DPSS got beams at about 1mm and 1.2mrad
while those 10 or 50mW rated single mode green and blue diodes come with 3-4mm beam and 0.3-0.4mrad
Overpowered M140 high power 445nm come with 1.2x5mm beam and 4x1.3mrad
I got for less than 12€ a 532, 405 and 658nm pointer to test them
They were on paper and specs all 5mW
But in description they were advertizes more like high power lasers
In fact the red and purple pointer were around 100-110mW and the 532nm DPSS were jumping between 10 and 20mW in first 30 seconds then dropped slowly to about 3-5mW after 2 minutes
Usually those cheap 100mW 405nm gets through german customs, as they are labeled often false and even if they are tested they are 100 times less bright than a 635nm red pointer at same power, so you cant see how dangerous they are
I ordered the cheap blue one last year, it was delivered but was DOA, and don't have the experience to trouble-shoot the laser module.
There are very few true 445nm lasers on market
The ones with Osram diode are a bit expensive as the bare laser diode is not cheap
http://www.ebay.com/itm/ONLY-5mw-2in1-Star-Laser-Pointer-Pen-445nm-450nm-Blue-Ray-Stage-Show-OSRAM-LD-in-/120924833550?hash=item1c27ae870e:g:U-0AAOSwDk5UKxTm
This one got tested to be true 450nm and 5mW
Ok, Lexel I see that you know more about this, I can’t understand you well so I will try to explain purpose so you can tell me it is possible or not ?
I’m getting some plastic on metal surface, and there are some small defects on the surface so I need to add some powder on that spots that are not covered well and then try with this laser to burn it down into the surface…
Powder that is used melt on 200 degrees, so main question is does this laser , can do such kind of things ?
If you want some good info about all types of laser stuff , you should try over at
the Laser Pointer Forums (LPF). www.laserpointerforums.com Beside finding
info you can also buy/sell lasers of any nm (color) or mW (power) ratings and some
knowledgeable laser builders on that site.
If you want melt powder on a metal surface take heat gun
You may melt the powder with laser, but the contact surface to the metal dont get hot and so the powder dont stick to it
Thanks a lot for help.
