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Chinese lasers wavelenght true?

borgqueenx

borgqueenx

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I want to know if the 650nm lasers from chinese arnt usally 658 in reality?
Im getting a 658nm laser module soon...want to know if its darker then the 650nm module i had some time go.

thanks.
 





Cyparagon

Cyparagon

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All the "650s" I've measured were 660-664nm with the exception of a $1 pointer at 655nm.
 
lasersbee

lasersbee

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Reading the data sheet I see 650nm +/-5nm...
645nm to 655nm...

Whether that is true when actually testing that
Laser remains to be verified..


Jerry
 
Last edited:
D

Deleted member 16589

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I'm not sure why the wavelength is so important I don't think +/-5nm is noticeable tho i could be wrong.

However i don't know if this helps but i ordered a 10mW 473nm unit 2 years ago and it was too spec power wise.

when I metered it it had a 17mW peak then stabilized at about 11mW and its still working great today. The review is linked in my Signature if it helps.
 
Cyparagon

Cyparagon

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The difference in color isn't much, but the difference in brightness is.
 
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