LED UV Wavelength

LED UV Wavelength

The Sun is a source of the full spectrum of ultraviolet radiation, which is commonly subdivided into UV-A, UV-B, and UV-C. The typical light source spectrum wavelength ranges from Ultraviolet Light (UVC 200 to 280nm, UVB: 280 to 315nm, UVA 315 to 400nm) to Visible Light (400 to 760nm) and Infrared Light (760 to 3000nm). LED UV lights have a narrow spectral output centered around a specific wavelength, +/- 10nm. Phoseon products use 365nm, 385nm, 395nm, or 405nm wavelengths. This near-monochromatic distribution (see chart) requires new chemical formulations to ensure proper curing of inks, coatings, and adhesives.

UV LED Vs. Mercury Spectral Distribution

uv led wavelength

The majority of standard UV curing happens in a narrow emission range with the remainder of the spectral output generating unneeded and potentially harmful UV-C and infrared emissions. UV LED lights provide this narrow emission range.

UV LED curing light sources efficiently convert 20-40% of the input electrical power into usable UV light with no harmful UV-C or infrared exposure. That efficiency translates into approximately 80% power and heat savings over mercury based lamps.  Request more information about LED UV wavelength