DX 300mw Green... uh huh

This came out today:
DealExtreme: $52.80 300mW 532nm Green Laser Pen (2*AAA)

I have no particular thoughts on the matter, other than the obvious. Just thought I'd mention it. Though I do love the comments:

"These green Laserpointers @ DX are all the same, they have an adjustable resistor inside which you can tune - or not. This makes them strong or weak and you can sell them as different versions "

That's a great comment for DX. Idiots buy Laser/Turn pot//kill Laser..Order another laser from DX.

Brilliant

I`m buying 3 now, then more if they are good. I think they should be around 120 / 150 real mW (infrared+green). Let`s see

megha said:

I`m buying 3 now, then more if they are good. I think they should be around 120 / 150 real mW (infrared+green). Let`s see

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I don't know how you'd have any basis upon which to guess. It's not like there's a "divide by 2" rule.

If you're gonna spend that much, I think you'd get a better laser with this:
DealExtreme: $67.20 SD-301 Focusable 200mW 532nm Green Laser Pen Pointer with Battery Set (1*18650)

rhd said:

I don't know how you'd have any basis upon which to guess. It's not like there's a "divide by 2" rule.

If you're gonna spend that much, I think you'd get a better laser with this:
DealExtreme: $67.20 SD-301 Focusable 200mW 532nm Green Laser Pen Pointer with Battery Set (1*18650)

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I don't know how you'd have any basis upon I`m guessing and using a "divide by 2" rule. I buy around $5000 on lasers to dealextreme/focalprice per year and I feel capable to guess in a forum... I can tell you that the laser you're linking is crappy and I`ve sold them, it`s main problem is that many times the beam / dot is not aligned with the body.

pd: jay has tested the 200mW modules and output up to 120mW (they are the same that DX uses in 200mW units of +- $47.00). So I think I have some support.

(b) just my opinion (b)

Ya - I don't buy it. I don't purchase $5000 worth of lasers from DX each year, but I think my perspective is still a reasonable one.

DX gets their products from a whole ton of different suppliers. Even within a product category (like lasers) they get them from tons of different sources. Even further, there's nothing distinctive about THIS laser. It's the typical host that a bajillion different sources sell lasers in. All you have to go on is the "200mW" claim, but you see this same host used for all sorts of power claims, and they can be both over and under spec. IE, no predictability until you actually try one out.

My point with the lack of a "divide by 2" rule, is that there's no constant here. If you see a green laser sold on a chinese gadget site as 3,000mW, do you think it will be three times as powerful as a green laser sold as 1,000mW? I don't.

The claims are not real, and I struggle to believe that any of them are any more or less "not real", or any more "predictably not real".

I could be wrong, but I do not believe DX simply uses the same 532nm modules that they sell individually, to build their lasers. So I'm not sure how much weight you can put on the review of their 200mW module in terms of predicting this pointer's power.

Just my thoughts.

rhd said:

Ya - I don't buy it. I don't purchase $5000 worth of lasers from DX each year, but I think my perspective is still a reasonable one.

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I was not talking about you, just trying to make you understand that I know this pointers...

rhd said:

DX gets their products from a whole ton of different suppliers. Even within a product category (like lasers) they get them from tons of different sources. Even further, there's nothing distinctive about THIS laser. It's the typical host that a bajillion different sources sell lasers in. All you have to go on is the "200mW" claim, but you see this same host used for all sorts of power claims, and they can be both over and under spec. IE, no predictability until you actually try one out.

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There IS predictability. I know the company and I understand their way to do bussiness with each kind of laser they sell. Maybe you can`t see it because your low experience or skills...

rhd said:

My point with the lack of a "divide by 2" rule, is that there's no constant here. If you see a green laser sold on a chinese gadget site as 3,000mW, do you think it will be three times as powerful as a green laser sold as 1,000mW? I don't.

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Only a fool can ask this to a person who is saying that spend +$5000 in laser pointers (per year). It`s not a lot and does not mean nothing at all, but you could be smarter and realize that I`ve tested hundreds more than you and I know all the things you`re trying to teach. I would have to be VERY idiot to think the annoying things you`re asking...

rhd said:

The claims are not real, and I struggle to believe that any of them are any more or less "not real", or any more "predictably not real".

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10 and 20mW units are ussually up to spec, if not underspect. Some 50mW and 100mW are very near to spec.

rhd said:

I could be wrong, but I do not believe DX simply uses the same 532nm modules that they sell individually, to build their lasers. So I'm not sure how much weight you can put on the review of their 200mW module in terms of predicting this pointer's power.

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Have you ever opened one ?

Just a few of the units opened

Ya, I give up...

Purchase away sir

@megha
Very interesting indeed.
Care to share some of your experience by telling us which lasers on DX and FP
are good deals? More specifically, the 18650 powered 100~200mw range?

Or just any specific model you have found to be the best among the many mediocre ones.

Yea, I want to know this too. I was planning to extract the module and place it in a bigger host with better thermal cooling.

Megha,
It would seem that you purchase lasers for the purpose of reselling them. My personal opinion is that these lasers are overpriced, until you can acquire more knowledge on their actual specifications. Odds are that these are the same shit as many of the other lasers sold on Dealextreme. Personally, you may want to think this purchase through a little more. But if you spend $5000 a year, than approximately $150 is insignificant.
Personally, there is one particular laser that I suggest you buy:
Focalprice.com offers 20mW Green Beam Laser Pointer (Silver) ,discount 20mW Green Beam Laser Pointer (Silver),20mW Green Beam Laser Pointer (Silver) products,low price 20mW Green Beam Laser Pointer (Silver),cheap 20mW Green Beam Laser Pointer (Silver

I bought one of these a couple of months ago, and it has served me well, it supports a reliable beam profile, approximately 70 mw in power, 1.5 mrad, and has pretty good stability. If you are reselling lasers, than this would seem to be a good one to sell. However, one laser can represent a lucky unit, it would be wiser to buy more than one to assure its legitimacy as a decent buy.

If you do not resell lasers, and just buy $5000 lasers a year for kicks, than this is also a decent buy.

-AAlasers

AAlasers said:

Megha,
It would seem that you purchase lasers for the purpose of reselling them. My personal opinion is that these lasers are overpriced, until you can acquire more knowledge on their actual specifications. Odds are that these are the same shit as many of the other lasers sold on Dealextreme. Personally, you may want to think this purchase through a little more. But if you spend $5000 a year, than approximately $150 is insignificant.
Personally, there is one particular laser that I suggest you buy:
Focalprice.com offers 20mW Green Beam Laser Pointer (Silver) ,discount 20mW Green Beam Laser Pointer (Silver),20mW Green Beam Laser Pointer (Silver) products,low price 20mW Green Beam Laser Pointer (Silver),cheap 20mW Green Beam Laser Pointer (Silver

I bought one of these a couple of months ago, and it has served me well, it supports a reliable beam profile, approximately 70 mw in power, 1.5 mrad, and has pretty good stability. If you are reselling lasers, than this would seem to be a good one to sell. However, one laser can represent a lucky unit, it would be wiser to buy more than one to assure its legitimacy as a decent buy.

If you do not resell lasers, and just buy $5000 lasers a year for kicks, than this is also a decent buy.

-AAlasers

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I resell them, but obviously I love laser pointers and test them all... The specs of that model are good, I'm buying about 40mW of green (with IR included) for that price. I'll think to buy some units, but first I have to think to do new labels, at least of >50mW. Will see, thanks for that advise
Anyway, I've asked 3 "300mW" units that will surely also be good pointers for its price. And back luck yif they are bad...

Buying cheap chinese lasers, relabelling them even higher, and then reselling them.

I suppose if they ARE actually higher powered, then this practice is probably ok. But something just seems inherently wrong here.

rhd said:

Buying cheap chinese lasers, relabelling them even higher, and then reselling them.

I suppose if they ARE actually higher powered, then this practice is probably ok. But something just seems inherently wrong here.

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Read again please, I'll not explain each word I say if you've understanding problems. Use more of your time to understand and read the guy saying that they may be about 70mW stable.

Don't quote me or answer because I've already lost many minutes with you and I'll not read you anymore. Thanks, try to understand that too.

I believe the "comprehension" problems are on your end.