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Just arrived: O-Like "400mW" 405nm

Arshus

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Ok guys the following will be a review of the O-like "400mW" 405nm Adjustable & Waterproof laser:

This laser came friday and is a little gem of a laser.



As you can see it came intact from Hong Kong with a nice little box with foam cutouts and to my surprise an Ultrafire Protected 2800mAh 18650 lithium battery.



As you can see the host is beautiful and has no stratches or blemishes and the threading is exellent. The tail cap screws on very nicely and snugly and has a rubber retention ring. Both of the laser's contacts are springs but with this unit its always "+" end of the battery towards the tailcap. There is absolutely no shaking once the battery is loaded in and the tail cap screwed tightly on. This laser has a very easy to operate rear clicky, which a very nice dustcap installed.



This laser is an exotic purple beauty. Very nice tight beam when focused for long range, and a clearly visible purple beam, these pictures are taken with an I-phone camera, with no added effects, no fog or smoke added.



As you can see I provided a picture of the laser's dot filtered through my goggles. It is a nice oval at close range and a more circular at longer ranges. This laser has no artifacts around the dot, which is very nice. It also helps me prevent identity theft by quickly, easliy and permanently redacting any documents or receipts before throwing them away.

And now for the power measurments:

This laser is rated at 400mw; however is capable of so much, much more:


For this run the laser started out at about ~510mW and quickly exceeded 560mW, reaching a peak of 568mW. As you can see from the laser's upward trend, it would have easily reached 600mW if left running for longer than the 75 seconds metered here, but as susie says:

laser: pls respect its duty cycle :)
I didn't want to keep it running for longer for fear of affecting the diode's lifespan as these lasers have a 60/90 sec on-off duty cyle.

So thats it for now, I hope you have enjoyed the review, please post a response with any additional questions, pictures or tests you would like me to run :yh:

Regards,

Sal
 

Arshus

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Steve, you will not be dissapointed, this thing is rediculous. How do you like your 1W O-like?

Outdoor beamshots comming soon :yh:

-Sal
 

Napalm101

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David, i wonder if ours is also around 500mW +- (maybe Arshus was just lucky) ?

Or do O-like tend to send out overspec Lasers?
 
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David, i wonder if ours is also around 500mW +- (maybe Arshus was just lucky) ?

Or do O-like tend to send out overspec Lasers?
They have some overspec lasers but usually not by that much. I don't have an lpm but Susie told me mine was outputting >360mW. I can only guess based on how much current the driver is pulling. I'm thinking his is pulling much more current than it should.
 

Arshus

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This laser is drawing ~2 amps from the battery.

Sal
 
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TeLight

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Mine is drawing about 1.3 amps at the tailcap. Hopefully other members will post their current draw and output(if they know it). I for one am waiting for the radiant alphas to come back in stock, then i can post a reading on mine :).

1.3 to 2 amps seems like quite a difference and you laser still continues to run. This puts very bad thoughts in my head (pot mod), but i don't think i will just yet. I'll wait for others to post their current draws.

Remember when measuring current be sure to press the battery down hard against the spring near the head of the laser or you will get a lower then actual reading!
 

DJNY

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Very nice pics!!

This O-Like baby is damn cheap :takeit:

+1 for you and your review
 

FireMyLaser

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You guys do realize you have to do the current measurement on a fresh battery, right? This lasers uses a DC-DC booster which will draw more or less current depending on the battery voltage.
 
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You guys do realize you have to do the current measurement on a fresh battery, right? This lasers uses a DC-DC booster which will draw more or less current depending on the battery voltage.
I am also aware :) Mine only pulls about .52A-.54A with a fresh battery. That's why I'm confused why Telight's is drawing 1.3A and Arshus's is drawing 2A. Mine is definitely powerful but why is it drawing that much less current?
 

Arshus

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There's no way your laser can draw only .5 amps, could there be something wrong with your reading? Even O-like says these lasers are supposed to be in the 1-2A range, for example these are the specs for the 400mW Green:

Wavelength: 532nm
Output Power >350mW
Pump diode 2.0W
Dimensions: Φ24mm×190mm
Transverse Mode: TEM00
Operating Mode: CW
Stability 5%
Operating Current 2A
Beam Diameter: 1.5mm(at aperture)
Beam Divergence: 1.5mRad
Duty Cycle: 100 seconds on, 60 seconds off
Power Source: 18650 lithium Batteries ,"+" towards tail cap
Operating Temp.: 10~ 35℃
Expected Lifetime: >5000 hours
Warranty: 6 Months (not included man-made broken

As you can see "Operating Current 2A", and my 405nm pulls around that same current, it fluctuates between 2.0 and 2.3, and sometimes reaches 2.6A.

My green however, pulls from 3-3.3A!

-Sal
 




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