how bright is 650nm compared to 658nm?

[borgqueenx]

Just curious... im getting a 1200mW 658nm module soon and i wonder how bright that would be compared to 650nm, and if you know also compared to 638nm.
i do know if i want a nice white combo i need 1000mw of 650nm.

 

[Misanthrop]

Beam: (582nm 1mw) vs. (552nm 1mw)

It's that beam brightness calculator.

 

[borgqueenx]

thanks thats a nice tool!

 

[rhd]

Beam: (582nm 1mw) vs. (552nm 1mw)

It's that beam brightness calculator.

It's kind of funny - without values specified, the tool creates random initial wavelengths. That also means that whenever you include the link in a forum post (to the tool in general) random values end up in the title!

I was thinking: "What kind of lasers produce 582 and 552nm light???"

 

[weeba2kv]

I always use that tool

 

[Cyparagon]

Many sellers call their 660 products 650. I've never seen a "650nm" laser that was actually 650nm. The two products you're considering are probably the same wavelength.

 

[borgqueenx]

Well im buying from the best module maker on the planet with diodes from opnext so i think it will be true 658nm...and i came from lasever...dont know if it is true 650nm...