Chinese lasers wavelenght true?

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.

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My Laser Collection:
Greenies:
500mW Jetlaser(Peak 667mW)

Reddies:
Awesome small minichrome 650nm laser outputting 280mw by Likeitbright (The King of my collection)

Blu-rayz:
None

Blue'z:
DTR's great 1.4W 445nm powerhouse in flashlight-like host

Source: http://laserpointerforums.com/f50/chinese-lasers-wavelenght-true-70231.html

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