DTR
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- Joined
- Jun 24, 2010
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Let me start by saying I normally don't go off on anybody but this is ridiculous. And I feel bad for this guy that got suckered. I also know there is a lot of feedback for this individual already but hopefully this post will save somebody else from making the same mistake. If you are buying check the seller feedback and if you are buying a unit that the seller has claimed an unusually high power like 2W or over demand an LPM test before laying your money down even if they have good feedback.
Ok so this is one of DAOO's customers that sent me their 2.2W laser that he bought from DAOO for $300+. Now I will start by saying it was broken when I got it so take that into account.
You can see the glue residue from his security sticker on the head and body.
First thing I noticed was that it was a C6 host that in my opinion has a very small heatsink not a good choice for a high powered 445 lasers which produce a lot of heat. For example here is a C6 heatsink next to a Saik heatsink.
Next I noticed the heatsink was too small for the host. It was not held tight by the retaining ring which allowed for the sink to spin. It has about a .5mm clearance. That is a huge problem and should have easily been caught while building the unit.
So I proceeded to unscrew the lens and I found it had a regular Aixiz three element glass lens in it.:undecided: I am sitting there thinking is never going to get a 445 to break 2W with that lens. At most if he was way over driving the diode @ 1.9A he may get 1.9W out of an extremely efficient diode but not for long in that host.
Next I looked at the soldering done on the diode. And here is another individual that does not think that shrink tubing is necessary for some reason.:tsk: It costs next to nothing and is easy to use. I just don't get it.
The wire used is the hardest wire I have ever seen used in a laser host. It feels like that old phone cord wire that you could stab something with. The positive lead actually broke off the driver from being so rigid with the lightest of moment on the other end. On top of that the solder was not neat by any means. It looked like a 5 year old was trying to learn how to do it.
Ok so Aixiz lens and shorty wiring well I bet he at least has a driver in there doing 1.8A off those tiny CR123A batteries. Nope. It looks like a cheap $3-$5 DX flashlight driver to me.(I am sure someone can identify it)
So I decided to test it. I got a reading a little over 1.2A with an 8.2V power source.:crackup:
Ok so this unit in my opinion this unit was probably doing 900mW-1.2W at best and he is claiming 2.2W. That is just unbelievable. I believe he listed these on his site for about $350. That is a huge ripoff. This is my rough estimate on what it should cost.
Host $12
Heatsink $15
Driver ~$5
Diode $40
Glass lens $10
Batteries $10
Total parts cost ~$92
A builder would be ok to charge about $50-$70 to put it together and take the risk of selling it but I would hope they take more pride in their work and would do a better job than was done on this one.
Before shipping and 3% Paypal fees I would estimate a fair selling price around $140-$160
This unit should have included a G-1/G-2 lens and a decent driver. Hell he could have gotten a Jib driver for $15 at least.
Anyway now I have to break it to this guy that he was scammed. He could have bought a better quality and power laser from Yob for $140 and on top of that of course his diode is dead probably from a cap on the driver.
Ok so this is one of DAOO's customers that sent me their 2.2W laser that he bought from DAOO for $300+. Now I will start by saying it was broken when I got it so take that into account.
You can see the glue residue from his security sticker on the head and body.
First thing I noticed was that it was a C6 host that in my opinion has a very small heatsink not a good choice for a high powered 445 lasers which produce a lot of heat. For example here is a C6 heatsink next to a Saik heatsink.
Next I noticed the heatsink was too small for the host. It was not held tight by the retaining ring which allowed for the sink to spin. It has about a .5mm clearance. That is a huge problem and should have easily been caught while building the unit.
So I proceeded to unscrew the lens and I found it had a regular Aixiz three element glass lens in it.:undecided: I am sitting there thinking is never going to get a 445 to break 2W with that lens. At most if he was way over driving the diode @ 1.9A he may get 1.9W out of an extremely efficient diode but not for long in that host.
Next I looked at the soldering done on the diode. And here is another individual that does not think that shrink tubing is necessary for some reason.:tsk: It costs next to nothing and is easy to use. I just don't get it.
The wire used is the hardest wire I have ever seen used in a laser host. It feels like that old phone cord wire that you could stab something with. The positive lead actually broke off the driver from being so rigid with the lightest of moment on the other end. On top of that the solder was not neat by any means. It looked like a 5 year old was trying to learn how to do it.
Ok so Aixiz lens and shorty wiring well I bet he at least has a driver in there doing 1.8A off those tiny CR123A batteries. Nope. It looks like a cheap $3-$5 DX flashlight driver to me.(I am sure someone can identify it)
So I decided to test it. I got a reading a little over 1.2A with an 8.2V power source.:crackup:
Ok so this unit in my opinion this unit was probably doing 900mW-1.2W at best and he is claiming 2.2W. That is just unbelievable. I believe he listed these on his site for about $350. That is a huge ripoff. This is my rough estimate on what it should cost.
Host $12
Heatsink $15
Driver ~$5
Diode $40
Glass lens $10
Batteries $10
Total parts cost ~$92
A builder would be ok to charge about $50-$70 to put it together and take the risk of selling it but I would hope they take more pride in their work and would do a better job than was done on this one.
Before shipping and 3% Paypal fees I would estimate a fair selling price around $140-$160
This unit should have included a G-1/G-2 lens and a decent driver. Hell he could have gotten a Jib driver for $15 at least.
Anyway now I have to break it to this guy that he was scammed. He could have bought a better quality and power laser from Yob for $140 and on top of that of course his diode is dead probably from a cap on the driver.
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Not sure if I put my diodes in risk but a lot of people use it in their lasers too. The size of the heatsink is ok if the diode is running at no more than 1.2-1.3 A, assuming it's outputting something close to 1.2 W. As for the laser, it's built very bad overall.
