Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The best wavelengths at the second and fifth generations.
| Generation | 2 | 5 |
|---|---|---|
| Wavelength (nm) | 410; 430; 490; 500; 510; 520; 530; 540; 550; 560; 580; 600; 610; 630; 690; 700; 710; 720; 740; 760. | 380; 390; 400; 420; 430; 440; 450; 500; 510; 520; 550; 580; 590; 620; 630; 640; 660; 670; 680; 730. |
