BLUE (473nm) DPSS
LASER POINTER


Blue (473nm) DPSS Laser Pointer, retail $880.00 (6,019.63 Chinese yuan)* (www.cnilaser.com...)
Manufactured by Changchun New Industries (CNI) (www.cnilaser.com)
Last updated 09-08-12

* IMPORTANT: Pricing is accurate as of 08-30-08. Please visit the Currency Calculator for the latest currency conversion rates from Chinese yuan to US dollars.



*** VERY, URGENTLY, CRITICALLY IMPORTANT!!! ***
Please read the ENTIRE evaluation before you make a purchasing decision regarding this laser!!! The rating was changed after I discovered that my first unit was defective and the replacement unit works better than advertised!!!

(In reference to the package I received from CNI at 9:41am PDT on 06-09-05):
{sung like the Foreigner song "Feels Like the First Time"}
Feels like a flaaaaaash-liiiight...feels like a FLAAAA-aaaash-liiiight!!!
Feels like a flaaaaaash-liiiight...feels like a FL

BREAK IN 32769
READY.
CONT

?OUT OF DATA ERROR IN 49152
READY.
Let's try that again...as soon as I saw the address on the package, I *knew* it wasn't a flashlight...

CONT

?CAN'T CONTINUE ERROR
READY.
LIST

10 POKE53280,15:POKE53281,15:PRINT CHR$(147);
32767 READ A$
32768 PRINT A$
32769 PRINT A$
40960 END
49152 DATA "{b}Feels like a flaaaaaash-liiiight...feels like a {i}FLAAAA-aaaash-{/i}liiiight!!!{/b}"

READY.
49152 DTTA "{b}Feels like a laaaaaa-sssser...feels like a {i}LAAAAA-aaaaa-{/i}ssser!!!{/b}"
RUN

?SYNTAX ERROR IN 49152
READY.
49152 DATA "{b}Feels like a laaaaaa-sssser...feels like a {i}LAAAAA-aaaaa-{/i}ssser!!!{/b}"
RUN

Feels like a laaaaaa-sssser...feels like a LAAAAA-aaaaa-ssser!!!
Feels like a laaaaaa-sssser...feels like a LAAAAA-aaaaa-ssser!!!

READY.
Since the late-1970s, I've wanted a blue laser. That dream finally came true on November 12, 2003 when I got an argon-ion laser, but that's a big heavy thing that needs a LOT of power.
Blue beam lasers in pointer format have not existed - until now (early/mid-2004), anyway.
This is the GLP-473 blue laser pointer, emitting just over 1.6 milliwatts of laser radiation at 473nm (4,730Å); just a bit longer in wavelength (very, very, VERY slightly more greenish) than the common high-intensity blue LEDs you may have already seen. The color could best be described as a "very slightly greenish blue".

It uses a mechanism somewhat similar to that used by green laser pointers: an infrared laser diode is fired into a crystal of material that doubles the frequency of the light so it emerges the laser as the blue laser beam you see. This is known as DPSS (Diode Pumped Solid State).
See "The Punishment Zone!" section below for additional details.

This laser pointer emits just over 1.6mW of laser radiation at 473nm, making it a CDRH Class IIIA instrument.


SIZE



To use the laser pointer, feed it the included batteries first (see directly below), and remove the blue protective plastic disc from the laser's business-end.

Press and hold the button on the side of the laser's body for as long as you need the laser spot. Releasing the button turns the laser off.

Yes, it really IS as easy as that.



To change the batteries in your spiffy new blue DPSS laser pointer, unscrew and remove the tailcap, and set it aside. Or, if you like to make things disappear, throw the tailcap in the {vulgar term for feces}bowl, yank that silver handle down, and flush it away...O WAIT!!! YOU'LL NEED THAT!!! So don't flush it.

Tip the battery carriage out of the laser's body, remove the two used CR2 cells from this carriage if necessary, and dispose of or recycle them as you see fit. Or stomp on them, if you like to break things. ;-)
If the cells are rechargeable, pop them in the charger instead of throwing them away or stomping on them.

Install two new CR2 cells into the battery carriage, orienting each cell so the flat-end (-) negative faces the spring for it in each chamber.

Insert the now-full battery carriage back in the laser's body, orienting it so the white plastic disc with the gold colored contact in the center goes in first.

Screw the tailcap back on, and be done with it.
Aren't you glad you didn't flush away that tailcap now?

Current consumption measures 836mA on my DMM's 4A scale.

VERY IMPORTANT: The batteries in this laser are in a parallel arrangement, so always change both batteries at once, replace them both with the same brand, and preferably purchased from the same store at the same time too.
Failure to do so opens up the possibility that one of the cells will discharge before the other, causing the better cell to discharge itself through the weaker one. You could then end up with dead batteries even if you did not use the laser much, if at all.



This is a laser pointer, not a flashlight. So I won't whack it against a steel rod or against the corner of a concrete stair, run over it, try to drown it in the toilet, throw it, stomp on it, or subject it to other abuses that a flashlight might have to endure.

Blue diode lasers are a lot different than those common red lasers you see all the time.

In a 640nm red laser pointer, there's a red-emitting diode and a lens to collimate (focus) the beam.

In a 473nm blue DPSS laser, there's a BIG infrared laser diode that generates laser light at 946nm, this is fired into a crystal called LBO (containing lanthanum boron oxide) that doubles the frequency to 473nm - the bright blue color you see. This light is then collimated (focused) by a lens and emerges out the laser's "business end". Just after the lens (in the end cap), there's a filter that removes any stray IR (infrared) radiation from the pump diode.
You don't want that stuff in your blue beam, trust me.

This is why blue diode lasers are so much more expensive than red ones. Lots of itty bitty parts, and they all need to be aligned by hand. If the polarisation is "off", the crystal needs to be turned. With red diode lasers, you just slap in the diode and slap a lens in front of it.

I AM NOT CERTAIN AS TO THE COMPLETENESS OF THIS INFORMATION; if you know about the internal functioning of 473nm blue DPSS lasers and you think this information is incomplete or incorrect, please don't hesitate to pipe up and offer the correct explanation.

(Edit, 06-09-05: From somebody who knows their {vulgar term for feces; rhymes with pit} about lasers, comes the following:

I believe that 946nm is not the output of the laser diode, but the output of a laser rod, crystal, etc. pumped by the diode laser (shorter IR wavelength). I have some cause to believe neodymium is the lasing ingredient. This would make a 473nm laser work the same way as a 532nm one - just use a non-main wavelength of neodymium ions (or neodymium compounds with neodymium in the proper oxidation state).

From the same person, comes this information:

Green lasers are doubling the 1064nm transition of Nd:YAG or Nd:YVO4, or some other similar host medium. The 946nm line is what is being doubled in blue lasers, and 473nm light is the result. Often, the choice for a Non-Linear Optical (NLO) crystal is different for the two lines. KTP is the crystal of choice normally for green, and LBO for blue. Also, the 946nm line has a much smaller cross section for emission. This means lower efficiency and the 1064nm line and even the weak 1319nm line will try to compete with it, stealing energy. On top of that, the 946nm line is self absorbing making the device a lot trickier to generate (like ruby, this is a case where the laser medium is actually somewhat opaque to the frequency of light the laser is trying to operate at, where as YAG is almost perfectly transparent at 1064nm).

So, they start out with pretty much the same structure: High power laser diodes at 808nm pump a Nd host which lases at 946nm, and this is inter-cavity doubled. But upon closer examination there are a lot of differences between the mechanisms operating in each laser.
The website I obtained this information from is http://members.misty.com/don/laserssl.htm.

This unit is not waterproof or submersible, so please try not to drop it in creeks, rivers, ponds, lakes, oceansides, docksides, puddles of Kodiak bear pee, slush piles, mud puddles, tubs, toilets, sinks, fishtanks, dog water dishes, or other places where water or water-like liquids might be found. In fact, because of its delicacy, please try not to drop it at all, regardless of whether the place is wet or dry.
I don't have any idea about how to resurrect a flooded DPSS laser, so if it got douched, you're probably SOL.

If you have to transport this laser outdoors and it's raining or snowing, place it in a plastic bag or shove it in a pocket that will hold the entire unit without exposing any of it to the rainfall or snowfall.

The switch button fits rather loosely in the barrel; you can hear a ticking sound from it when the unit is only lightly shaken.

There is what I believe is an AR (antireflective) coated glass window (later determined to be the IR filter) just behind the laser aperture. Backscatter from the blue laser beam appears very minimal at worst - yes, this is a good thing.

Output power was measured at 1.629 milliwatts.

According to the stamped imprint on the CDRH label, this laser is brand spanken new - it reads "05 2005". Speaking of CDRH labels, the one on this laser indicates it is a Class IIIb instrument, emitting "<500mW at 473nm to 1,064nm".

Stability is fairly low, but I knew that going in - the lower stability values cost less.

There is a hole in the tailcap that allows you to affix a lanyard to it if you wish. A lanyard is not furnished with the laser, so if you wish to use one, you'll have to procure it elsewhere.

The antistatic bag this laser came in was marked with a serial number. Mine is 5040964.
(Update 10-09-05): When the bezel was unscrewed and removed, this number was found written in red felt tip pen inside the unit too.

Every year, I laser the Westlake Mall Christmas tree lighting ceremony and the Bon Marche Star lighting ceremony (both ceremonies are on the Friday after Thanksgiving) with a green or yellow laser; I really wanted to laser these ceremonies with this blue laser this year, but I just have this sneaking suspicion that I will not be successful with it. Not because I moved, but because this laser may not be up to the job.



Photograph of the beam spot on the test target at ~12".
Beam is not white in the center like this photograph makes it appear.
Beam spot also bloomed on the camera; the actual beam spot is significantally smaller.


Laser power oputput analysis
Measures 34mW on a LaserBee 2.5W USB Laser Power Meter w/Thermopile without the IR filter in place; however, most of this power is the NIR radiation from the pump diode.


Stability analysis Long-term stability analysis cum battery discharge analysis.
Laser temperature measures 90°F (32.2°C) at 625 seconds into this test.
Runs for 1,155 seconds (19.25 minutes) until power output drops dramatically. I don't know what that "hitch" at ~920 seconds is, so please don't ask.

This test was performed on a LaserBee 2.5W USB Laser Power Meter w/Thermopile.


Spectrographic analysis
Post-test spectrographic analysis of this blue laser performed in order to check for wavelength drift.


Spectrographic analysis
Post-test spectrographic analysis of this blue laser performed in order to check for wavelength drift; spectrometer's response narrowed to a range between 463nm and 483nm to pinpoint wavelength, which is 475.084nm.





Photograph of the beam spot on a wall at approximately 15'.
Beam is not white in the center like this photograph makes it appear.

Those rectangular graphic things near the bottom are marquees from:
Venture Line ''Looping''
Sega ''Hang-On''
Williams ''Stargate''
Sega ''Star Trek''

upright coin-op arcade video games from the 1980s.

And that red star thing is from an American DJ Laser Widow.



Beam photograph at ~10 feet.

Those rectangular graphic things are marquees from:
Williams ''Joust''
Venture Line ''Looping''
Universal ''Mr. Do!'s Castle''
Jaleco ''Exerion''
Gremlin/Sega ''Astro Blaster''
Atari ''Tempest''
Gottlieb ''Q*bert''

upright coin-op arcade video games from the 1980s.

And that red star thing on the marquees is from an American DJ Laser Widow.



Photograph of the beam at approximately 15'.




Photograph of the actual beam, with the laser ~2 feet from the camera.
Smoke was used to allow the beam to be seen.
Some movement occurred; the laser beam appears wider in this photograph than it actually is.



Beam as shown in fog.
Photograph was taken at 6:26am PST on 11-29-08 in north Sacramento CA. USA.



And here's a photograph of an Exveemon plush with this laser. Exveemon is blue, and has a weapon called a "Vee Laser".
Veemon, digivolve to...EXVEEMON!!!
{shouting} VEEEEEE LASERRRRRRRRR!!!!!!

The Vee Laser isn't blue, but Exveemon himself is, so I believed it appropriate for this web page.



TEST NOTES:
Sample of the blue DPSS laser pointer was purchased from CNI on 04-29-05, and was received on the morning of 06-09-05.

Customs (duty) charges are expected to be approximately $60.00, but I won't know for certain until I receive the bill in 2 to 4 weeks.

Laser module was made in China. A product's country of origin really does matter to some people, which is why I published it on this web page.


UPDATE: 06-10-05
This laser works significantly better when it's warm (NOT hot!); I obtained an output power reading of 2.646mW when the unit was warmed in the hand and used intermittently for approximately 2 minutes. Stability is definitely an issue though; sometimes I get no output, sometimes I get low output, and sometimes I get high output (2.6mW). As I said earlier though, I knew stability would be an issue going in, so it was not a surprise.


UPDATE: 06-12-05
This laser does not work well (or at all) at ambient (room) temperatures below approximately 75°F (23.9°C).


UPDATE: 06-13-05
I had the laser module on top of my computer monitor for at least several hours last night, reaching a case temperature of 94°F (34.4°C), and had fairly consistent output of at least several hundred µW (microwatts) every time the unit was actuated. This is still significantly lower than peak. So stability is only partially dependent on temperature; I don't yet know what other factors play a role.


UPDATE: 06-14-05
I had the laser module on top of my computer monitor for approximately 2 hours 30 minutes this morning, reaching a case temperature of 89°F (31.7°C), and had fairly consistent output of 170µW (microwatts) every time the unit was actuated.


UPDATE: 06-16-05
I've decided to downgrade my rating from 3 stars to 2 stars, because I get no output at all most of the time, and low output when I get tired of screwing with it and think about putting it away.


UPDATE: 06-27-05
I discovered that this unit is serialised: the serial number is 5040964, and this number is printed on a label on the silvery ESD bag it came in. I discovered this approximately a week ago, but forgot to add it to this web page.


UPDATE: 07-02-05
Using a laser power meter specifically designed for that purpose, I measured an output of 1,596µW (1.596mW). This laser is very unstable though, so power readings could be a little higher or a LOT lower than this, depending on the time of day, the day of the week, what channel the TV is on, the depth of the water in the cistern (toilet tank), or the length of the siggeret burning in the ashtray.


UPDATE: 07-08-05
Customs charges were $20.00, so the total cost of this laser was $960.00, counting the cost of the laser itself, shipping, the charges levied by my bank to send the money, the charges levied by CNI's bank to receive the money, and customs.


UPDATE: 08-01-05
I have decided to downgrade my rating yet again to just one lousy star.
This laser is really a POS and is not recommended.


UPDATE: 08-03-05
I measured a power output of 1.995mW with a case temperature of 88°F (31.1°C).


UPDATE: 08-08-05
I have decided to downgrade my rating yet again to "Zero Stars - Whip Out Your Ding-Dong or Sit on the Toilet and Go Potty On It".


UPDATE: 08-19-05
With a case temperature of 87°F (30.5°C), I measured a power output of just 24.75µW. I was sure to install new CR2 cells for this test.


UPDATE: 09-23-05
What a "catbeat segment of poo-poo momma farker" (toilet words replaced with innocous ones - the correct acronym is PWPOSMF) this has turned out to be.
Usually, I have to gently hit it on its front-end while the button is pressed to get any blue radiation at all.


UPDATE: 09-24-05
It's a miracle!!! I took this laser with me to my birthday lunch with a couple of friends today (something we've done for approximately the last ten years - last year I brought my yellow laser pointer); this blue laser operated fairly normally and it did not need to be struck too much while I was showing it to them at a pizza place.


UPDATE: 09-25-05
It's REALLY a miracle!!! I thought this laser looked brighter than normal, so I measured it - 3.486mW with a case temperature of 90°F (32.2°C).
In light of this, I have decided to increase its rating to ½ star!!!
That's a lot better than the "Zero Stars - Whip Out Your Ding-Dong or Sit on the Toilet and Take a Leak On It" rating I gave to it earlier.


UPDATE: 10-01-05
I measured a current consumption of 536mA when no laser radiation was being emitted.


UPDATE: 10-09-05

Here is a photograph that shows the unit can emit some NIR radiation when not emitting the blue radiation it's supposed to.
See that whitish spot near the center of this photograph?
That's it.
This spot is not visible to the human eye, but most digital cameras can perceive NIR (near-infrared) radiation as a whitish shade ranging from yellowish-white to purplish-white. The radiation in this photograph probably adds up to a few microwatts (maybe no more than ~10µW) total at 1,064nm, 946nm, and 808nm. This is not a significant amount of NIR radiation, and is nothing whatsoever to be concerned about.


UPDATE: 11-02-05
This laser outputs 1.21µW (1.21 microwatts) of NIR and/or IR radiation (the spot shown in the photograph on the 10-09-05 update above). Yes, I measured it with a meter specifically designed for the wavelengths involved.


UPDATE: 11-06-05
I've decided to downgrade its rating again to "0 Stars - Whip Out Your Ding-Dong or Sit on the Commode and Tinkle On It", because it works very poorly - if at all, even when known-new batteries are installed in it.
I measured a power output of 97.02µW using a laser power meter specifically intended for that purpose.


UPDATE: 11-15-05
After retensioning the springs in the battery carriage, this laser outputs 1,314µW (1.314mW) with a meter specifically designed for the laser.


UPDATE: 11-18-05
I'm not sure whether to rate this laser 0 stars or ½ star - I get output about half the time I pick it up, and about half the time I don't - until I start shaking it; then maybe I'll get very low output - a few dozen microwatts or thereabouts. At least my yellow DPSS laser pointer emits laser radiation every time I pick it up and activate it.


UPDATE: 11-22-05
I have been advised that the use of "strange batteries" should not be a negative here - and I agree - so I've decided to upgrade this product's rating by ½ star.


UPDATE: 12-01-05
I have it on good authority that the US distributor for CNI products will accept this laser and send it overseas for repair and/or modification. If it really *IS* defective, and if it emits blue radiation on a consistent basis when I receive it back, the rating will be going up!!!


UPDATE: 12-11-05
I have gotten the green light to mail this laser back to the north american distributor for CNI, and they will mail it back to CNI for repair and/or modification.


UPDATE: 12-20-05
I received the RMA # last night, and have now boxed the unit up for a little trip late this morning (PST). The next update on this page will hopefully be that my blue laser works fantastically, and will probably be next year.


UPDATE: 03-08-06
I received a laser back early this afternoon (2:06pm PST). It isn't the same laser I sent late last year, but is a new laser called the Aquarius-2. The serial number of this unit is 5040964.
The date stamped on the CDRH label is 02 2006.
The CDRH label itself indicates this is a Class IIIa instrument, emitting <5mW at 473nm.

Buy it at Laserglow (link opens directly to the web page this product is on).

It measures 2.496mW on a laser power meter specifically made for this purpose, with a case temperature of 90°F (32.2°C). According to the supplied instructional material, this is the optimum operating temperature of this laser.
Current usage of this new model measures 813mA on my DMM's 4A scale.

Spectrographic analysis
Spectrographic analysis of this blue laser.


USB2000 Spectrometer graciously donated by P.L.

Unit also comes with a hard-sided plastic case with corrugated foam on the inner surfaces of both halves.

As a result of my findings on the replacement, I have upgraded this product's rating to 4 stars.
It's a pretty good bet my original one was defective, which is why I rated the replacement so much higher.


UPDATE: 03-09-06
I measured a power output of 2.898mW this morning, with a case temperature of 87°F (30.5°C).


UPDATE: 03-09-06
No, you aren't seeing things. Yes, a same-day update.
IR photograph
Photograph of the "business-end". See that white spot below the central beam aperture? That's 808nm NIR radiation. When the end cap is removed, that also removes the IR filter. This radiation measures 78.81µW (78.81 microwatts).
To the unaided eye, this appears as a very dim, deep cherry red glow.


UPDATE: 03-09-06
No, you aren't seeing things. Yes, another same-day update.
Power output was measured at 3.126mW.

I have decided to rate it 4½ Stars and place it in The Trophy Case. This is the first time any product has gone from The Toylet Bowl to The Trophy Case on my website. It emits at least 2mW of blue laser radiation *EVERY TIME* I pick it up - just like it ought to.


UPDATE: 03-12-06
Spectrographic analysis
Spectrographic analysis of this blue laser, with the IR filter removed.



UPDATE: 03-14-06

A photograph of this laser's beam from ~5 feet.
Beam is narrower than depicted; some movement occurred.


UPDATE: 03-20-06
I just measured it at random, and it measured 2.232mW on a laser power meter specifically designed for that purpose.


UPDATE: 03-24-06
I just measured it at random again, and it measured 3.717mW on a laser power meter specifically designed for that purpose.


UPDATE: 04-02-06
I just measured it at random yet again, and it measured 2.463mW on a laser power meter specifically designed for that purpose. I used the same set of CR2 cells as I received with the laser on 03-08-06. The case temperature was 86°F (30°C).


UPDATE: 04-03-06
I just measured it at random yet again, and it measured 2.871mW on a laser power meter specifically designed for that purpose. I used the same set of CR2 cells as I received with the laser on 03-08-06. The case temperature was 89°F (31.7°C).


UPDATE: 04-11-06
I just measured it at random yet again, and it measured 2.292mW on a laser power meter specifically designed for that purpose. I used a new set of CR2 cells for this test. The case temperature was 87°F (30.5°C).


UPDATE: 04-16-06
Here is a photograph of the foam-padded hard case, with the laser in it.

Case photograph



UPDATE: 05-28-06
This laser makes a fantastic cat toy!!! A fantastic $960.00 cat toy!!!
My stepsister's cat Puffin really goes after the blue laser spot - he really sees it well, chases it madly back & forth across the room and up his cat tree, and believes it to be an insect of some type. This proves that cats can see a wavelength of 473nm in the blue region of the spectrum. I chose this laser because it has a low enough measured power to not cause damage to the cat's eyes in the event of accidental irradiation; the other two lasers I brought to Sacramento with me (the yellow DPSS laser and the Wicked Phoenix green DPSS laser) are simply too powerful to use as a cat toy (the yellow one is 6mW+, the green one is 80mW+).


UPDATE: 06-26-06
I just took a random measurement of its power, and got a reading of 3.02225mW. I just saw the laser and then saw the power meter and thought to myself, "I think I'll take a reading", and I did.


UPDATE: 01-22-07
I just took a random measurement of its power, and got a reading of 1.041mW. I thought the unit was acting up, so I removed the batteries, unscrewed it in the center, reassembled it, and took a measurement.
The 1.041mW reading is well within spec; nothing to be concerned about there.


UPDATE: 05-17-07
The beam diameter is approximately 0.25mm to 0.50mm at the exit aperture; this is significantly smaller than the beam diameters of all other DPSS lasers I have used or seen. I should have mentioned this earlier, but like they say, better late than never.


UPDATE: 07-06-07
I checked this laser with an oscilloscope to verify true CW (continuous wave) rather than pulsed or quasi-CW operation, and it is indeed true CW, not pulsed or quasi-CW.


UPDATE: 11-16-07
The switch button has now failed.
I noticed the failure beginning to manifest itself several days ago; the unit has almost completely failed now.
My guess is that a snap-action pushbutton is rated to carry a low current (~50mA), while the laser uses over 830mA - so that the contacts have very likely burned and the switch only passes small currents now - not nearly enough to initiate lasing. As a result, it will be derated by a significant degree and removed from The Trophy Case on this website.


UPDATE: 03-19-09
Spectrographic analysis
Spectrographic analysis of the fluorescence of the pink body of a Patrick Star plush (stuffed critter) when irradiated with this laser.
USB2000 Spectrometer graciously donated by P.L.


UPDATE: 04-16-09
Spectrographic analysis
Spectrographic analysis of the NIR laser line from the Nd:YVO4 crystal, with IR filter removed.
A PC2000-ISA spectrometer was used for this analysis.


UPDATE: 05-16-09
Spectrographic analysis
Spectrographic analysis of fluorescence of a Tritium Torch when irradiated with this laser.
Note that the fluorescence hump is *VERY* weak, but it is there.





PROS:
Unique, attention-getting color that's radiant and unusual for a handheld laser
Beam is "clean", with no visible speckling or artifacts around it
Durable, hefty casing
Natural, flashlight-like feel in the hand
Unique, attention-getting color...o wait I said that already.


CONS:
Fragile interior construction - like all DPSS lasers. Will not figure into my rating
Not water-resistant - but most other DPSS lasers aren't either. Will not figure into my rating
Switch has failed (this is what I would term a "critical failure") - it could be underrated right from the factory


    MANUFACTURER: CNI
    PRODUCT TYPE: Blue DPSS laser pointer
    LAMP TYPE: DPSS Laser
    No. OF LAMPS: 1
    BEAM TYPE: Very narrow; it's a laser, remember?
    SWITCH TYPE: Pushbutton momentary on barrel
    BEZEL: Metal; an aperture (hole) is in it to allow laser beam to emerge
    BATTERY: 2xCR2 lithium camera cells
    CURRENT CONSUMPTION: 836mA
    WATER- AND PEE-RESISTANT: No (*very* light sprinkle-resistance at maximum)
    SUBMERSIBLE: NO WAY HOZAY!!!
    ACCESSORIES: 2x Panasonic CR2 cells, hard-sided plastic case
    SIZE: 6.20" L, 0.95" D
    WEIGHT: 164.90g (5.820 oz.) empty; 187.20g (6.60 oz.) incl. batteries
    WARRANTY: 6 months

    PRODUCT RATING:

    Star Rating





Blue (473nm) DPSS Laser Pointer * www.cnilaser.com...






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