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DL 50mw 589nm

GR3EN

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So as some already know last month I purchased a DL Spartan 50mw 589nm. I've waited until now to do a review because my laserbee arrived today!

Buying experience:

Overall as a buyer from dragon lasers I had only one small issue and that was payment. After adding the laser to my cart etc etc and finally getting to the payment part my debit card would just not work. So I decided to go the PayPal route and sent them an email with my order # and asked for a PayPal invoice. Within 12hrs I received a very polite email with my requested invoice.

Shipping:
I ordered right before the Chinese new year (I know a gamble in itself) and since I did, out of curiosity, I shot them an email to inquire about the shipping with the holiday and all. Again within 12 hours I received a polite email saying that it would be shipped out that day and within another 5 hours I was sent a tracking number. Now the long part. waiting. Of course the tracking didn't update until the Chinese new year was almost over.

Now for the actually tracking etc . when the tracking did finally update it was through TNT and had a delivery estimate of 3 days after it began and I thought to myself there is no way, but sure enough within the first day it was in California then passed through customs then made the swift journey to the east coast. It was handed off to Fed-Ex and delivered to me on the third day.

In total it took me 10 days from my order date to receive my laser. Very quick and very pleased. On customs declaration it was listed as telescope parts in case anyone is interested.

Packaging:
I will let pictures speak for themselves.






Overall the packaging was kind of lacking. Just 2 pieces of bubble wrap., but I suppose it was good enough as there was no damage.

Laser:



The laser itself is nice. Has a good weight to it and a nice solid feel. Take 1x 18650 as I'm sure most of you know. One thing I did notice was lack of battery orientation etching toward the tail cap I had noticed on other's who previously purchased them. All was well though I just used my label maker to make me a little label indicating direction. There is also the little screw in cover for the front which as others have stated can be a bit of a hassle but does the job. Most people have seen the Spartan host so that's enough of that.

Lastly Is POWER:

I was honestly kind of nervous on the power with the couple bad apples here after the GB. So this will be another review whether good or bad for the 3rd after the GB (that has been posted at least)

I just got my laserbee in today and am just as excited as everyone else to finally test this thing. I will be testing it 4 inches from the sensor (measured with a tape measure) (also waiting 20 minutes + for the sensor to reach the ambient temp of the room I'm testing in.)


Conclusion:

Overall I must say I am very satisfied with my purchase. Very first power test of 5 minutes is very promising showing close to 100mw for almost a full minute. Will be doing other tests as well to see how they vary in diff temperatures etc but for now this is what I leave you with.
 
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Hap

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Re: DL 50mw 589nm Review (finally)

Lucky man, that thing is ammmmmmazing! Never have seen 589nm in my life :thinking:

Im anxious to know what the power output is and will hope yours is over-spec :) I would like to say im also a fan of the anti-static bag which come with CNI lasers hehe, im weird like that.

+rep

-Alex
 

10fenny

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Re: DL 50mw 589nm Review (finally)

I am interested in the power too! Im part of the 589 CNI group buy. SOOOO lets see some readings!!
 

GR3EN

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Re: DL 50mw 589nm Review (finally)

Ok 5 minute power reading is up. Stays closer to 100mw for a full minute~
 
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Robert S

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Re: DL 50mw 589nm Review (finally) (Power Test Up)

Really nice Laser you got there but didn't it get hot after running it for such a long time?
 

GR3EN

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Re: DL 50mw 589nm Review (finally) (Power Test Up)

Really nice Laser you got there but didn't it get hot after running it for such a long time?
After 5 minutes it got a little warm but not an alarming amount id say. I've never run it past about 5 mins though. Others here have though with no issues.
 

gozert

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Re: DL 50mw 589nm Review (finally) (Power Test Up)

Thanks for the review. Looks like you got a pretty decent unit from them, good to see!

Does it mode hop though?
 
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GR3EN

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Re: DL 50mw 589nm Review (finally) (Power Test Up)

Thanks for the review. Looks like you got a pretty decent unit from them, good to see!

Does it mode hop though?
As see in the video it does from a dead cold start for about 30-40 seconds. After that it brightens up and seems to have minimal if any hopping.
 

gozert

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Re: DL 50mw 589nm Review (finally) (Power Test Up)

As see in the video it does from a dead cold start for about 30-40 seconds. After that it brightens up and seems to have minimal if any hopping.
I was talking about it hopping transverse modes, not power. :)

Is it TEM00 or TEM10 for example? Or does it hop between TEM00 and TEM10?

Don't worry if you can't see it, or if it's too hard to see. It's not that important, I'm just curious.

Here is a bit of information regarding transverse modes
 

GR3EN

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Re: DL 50mw 589nm Review (finally) (Power Test Up)

I was talking about it hopping transverse modes, not power. :)

Is it TEM00 or TEM10 for example? Or does it hop between TEM00 and TEM10?

Don't worry if you can't see it, or if it's too hard to see. It's not that important, I'm just curious.

Here is a bit of information regarding transverse modes
The "power" in the first 30-40 seconds also coincides with transverse in modes. If you watch closely almost (almost) every time you see the reflection of the sensor "flicker" or what looks like it is changing brightness the beam is usually mode hopping as well. Hard to tell about what modes it's hoping between, but it is.
 
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gozert

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Re: DL 50mw 589nm Review (finally) (Power Test Up)

The "power" in the first 30-40 seconds also coincides with transverse in modes. If you watch closely almost (almost) every time you see the reflection of the sensor "flicker" or what looks like it is changing brightness the beam is usually mode hopping as well. Hard to tell about what modes it's hoping between, but it is.
Alright, had not thought of that yet. I was curious which modes it is hopping between to compare it to the CNI 589nm that I'm getting from the GB that's going on now.

I can probably find it in another review though, thanks.
 

GR3EN

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Re: DL 50mw 589nm Review (finally) (Power Test Up)

From the wiki you linked if I look at it closely on a black surface (with glasses of course) it probably closest resembles 1 or 10 (almost looking like it splits into 2). It is only during that warm up period though.
 
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gozert

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Re: DL 50mw 589nm Review (finally) (Power Test Up)

From the wiki you linked if I look at it closely on a black surface (with glasses of course) it probably closest resembles 1 or 10 (almost looking like it splits into 2). It is only during that warm up period though.
Okay, that's pretty good. Thanks for taking the time to look at it for me.
 
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Robert S

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Re: DL 50mw 589nm Review (finally) (Power Test Up)

After 5 minutes it got a little warm but not an alarming amount id say. I've never run it past about 5 mins though. Others here have though with no issues.
Ah, well, i was kinda comparing it to my DL Hulk Ultra which has a stated cycle of only 2 minutes but the host it much bigger, but it also has a lot more output, didn't think of that.
I did run in for more than 10 minutes though, and it didn't get any warmer, either.

Sounds like the CNI PGL im getting, will have a pretty long cycle, if it has one at all. :)
 
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gozert

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Re: DL 50mw 589nm Review (finally) (Power Test Up)

Ah, well, i was kinda comparing it to my DL Hulk Ultra which has a stated cycle of only 2 minutes but the host it much bigger, but it also has a lot more output, didn't think of that.
I did run in for more than 10 minutes though, and it didn't get any warmer, either.

Sounds like the CNI PGL im getting, will have a pretty long cycle, if it has one at all. :)
The CNI PGL (I assume you're getting the 589 from the GB) has quite a powerful pump diode. I wouldn't run it for 10 minutes if I were you.
 

Robert S

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Re: DL 50mw 589nm Review (finally) (Power Test Up)

The CNI PGL (I assume you're getting the 589 from the GB) has quite a powerful pump diode. I wouldn't run it for 10 minutes if I were you.
Well, do you think i could still go by "its just feels warm" or will it generally be bad to keep it on longer?

Ill probably never run it for longer than a few minutes max, just wondering how long it could be run.
 




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