I am looking for a source for 220nm led bulbs for a Covid sterilization research project. Any suggestions would be a great help
I might have missed a product, somewhere, but the most likely results on our site will be listed as ultraviolet in [ Infrared, UV, Visible Emitters ] and [ LED Lighting - COBs, Engines, Modules, Strips ].
I did not see any item as low as 220nm, though (notice the wavelength filter options).
As a UV-C source, current LEDs are only practical for very localized and/or very low-power applications due to efficacies of only about 1%. Gas discharge (fluorescent) lamps do much better, in the ballpark of 30%, and are commercially available with radiant outputs of watts rather than milliwatts.