UV-A LED lighting as a Disinfectant

As the coronavirus sweeps across the world, news out of the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute is getting some major attention. The LRC has announced the results of research into the use of continuous disinfection technology based on ultraviolet (UV) LED emission in the UV-A band tested in a hospital setting. The research utilized solid-state lighting (SSL) luminaires from GE Current that were shown to destroy pathogens on surfaces after eight-hour exposure in a hospital intensive care unit. The tests also revealed, however, that the UV-A radiation also caused photodegrading effects in the rooms.

The disinfection mechanism is similar to the violet energy. But the UV-A emission does not impact the quality of the light in the human visual range. The LRC verified the safety of the UV-A approach and the success in disinfecting surfaces. The results have been published in the academic journal Lighting Research & Technology.

This could be a major breakthrough in not only healthcare disinfection but for other industries like restaurant and retail settings as well.

Click here to read the full story, recently updated on March 2, 2020, in LEDs Magazine.